Glossary Letter R
R programming language - The R programming language is an open source scripting language for predictive analytics and data visualization.
R-BGAN - BGAN (Broadband Global Area Network) is a mobile communications system created to transmit broadband wireless voice and data communications almost anywhere on the earth's surface.
R-value - R-value is a number, or score, that is used to quantitatively express the subjective quality of speech in communications systems, especially digital networks that carry voice over IP (VoIP) traffic, or for which VoIP service is under consideration.
R/2 - R/2 is a set of coordinated business applications from SAP, a German company that introduced the product in 1979.
R/3 - R/3 is the comprehensive set of integrated business applications from SAP, the German company that states it is the market and technology leader in business application software.
R/3 Repository - In the R/3 system from SAP, the R/3 Repository is the central place where development components in the ABAP Workbench are stored.
R/390 - The P/390 is basically an IBM mainframe system adapted to run on a personal computer.
R3 - Reduce, reuse and recycle (R3) are the three essential components of environmentally-responsible consumer behavior.
RA - A registration authority (RA) is an authority in a network that verifies user requests for a digital certificate and tells the certificate authority (CA) to issue it.
rabbit hole - A rabbit hole, in a metaphorical sense, is a long and winding exploratory path with many connections and offshoots.
RAC - Real Application Cluster (RAC) is a component of the Oracle 9i database product that allows a database to be installed across multiple servers.
RACE - Rapid Access Computing Environment (RACE) is a United States federal government infrastructure-as-a-service (IaaS) initiative for developing and testing new Department of Defense (DoD) software applications.
race condition - A race condition is an undesirable situation that occurs when a device or system attempts to perform two or more operations at the same time, but because of the nature of the device or system, the operations must be done in the proper sequence to be done correctly.
Racemi - Racemi is a data center software vendor that specializes in cloud provisioning and cloud migration products.
raceway - A raceway is an enclosed conduit that forms a physical pathway for electrical wiring.
RACF - RACF (Resource Access Control Facility) is the IBM security management product for its mainframe (large server) operating system, OS/390 (MVS) as well as for its VM operating system.
rack - Rack-mounted describes a unit of electronic equipment that is housed in a metal framework called an equipment rack.
rack - A rack, in an IT (information technology) context, is a supporting framework that holds hardware modules.
rack mounted server - A rack server, also called a rack-mounted server, is a computer dedicated to use as a server and designed to be installed in a framework called a rack.
rack server - A rack server, also called a rack-mounted server, is a computer dedicated to use as a server and designed to be installed in a framework called a rack.
rack server (rack-mounted server) - A rack server, also called a rack-mounted server, is a computer dedicated to use as a server and designed to be installed in a framework called a rack.
rack unit - A rack unit (abbreviated as U, less commonly seen as RU) is a unit of measurement (1.
rack-mounted - Rack-mounted describes a unit of electronic equipment that is housed in a metal framework called an equipment rack.
rack-mounted server - A rack server, also called a rack-mounted server, is a computer dedicated to use as a server and designed to be installed in a framework called a rack.
rack-scale flash - Rack-scale flash is flash-only storage that uses a high-speed interface to connect the storage more directly to the CPU than with a traditional storage array.
Rackspace Cloud - Cloud provider Rackspace offers several different cloud storage services including Cloud Files, Cloud Block Storage and Cloud Backup.
Rackspace Fanatical Support - Rackspace Fanatical Support is Rackspace's customer service program, which provides support for customers using its managed hosting services and cloud platforms.
RAD - Rapid application development (RAD) is a model based on the concept that higher-quality products can be developed faster through more expedient processes, such as early prototyping, reusing software components and less formality in team communications.
rad/s - The radian per second (symbolized rad/s or rad/sec) is the Standard International (SI) unit of angular (rotational) speed.
rad/sec - The radian per second (symbolized rad/s or rad/sec) is the Standard International (SI) unit of angular (rotational) speed.
radar - Radar is an acronym for "radio detection and ranging.
radar (radio detection and ranging) - Radar is an acronym for "radio detection and ranging.
radian - The radian is the Standard International (SI) unit of plane angular measure.
radian per second - The radian per second (symbolized rad/s or rad/sec) is the Standard International (SI) unit of angular (rotational) speed.
radian per second (rad/s or rad/sec) - The radian per second (symbolized rad/s or rad/sec) is the Standard International (SI) unit of angular (rotational) speed.
radian per second squared - The radian per second squared is the unit of angular (rotational) acceleration magnitude in the International System of Units (SI).
radiant energy - Radiant energy is, simply, energy that radiates from a source of electromagnetic radiation, such as the light and heat radiating from the sun.
radiant intensity - Radiant intensity is a quantitative expression of the brilliance of a source of electromagnetic (EM) energy over the entire electromagnetic spectrum.
radiation shield - In mobile phones, a radiation shield is an accessory that serves to decrease the amount of radio frequency (RF) energy being absorbed by a mobile phone user.
radical candor - Radical candor is a management technique that focuses on challenging employees directly while also caring for each person on a personal level.
radical innovation - Radical innovation refers to an invention that represents something new to the world.
radio access network (RAN) - A radio access network (RAN) is a major component of a wireless telecommunications system that connects individual devices to other parts of a network through a radio link.
radio charging - Radio charging is a wireless charging method used to charge items with small batteries and low power requirements, such as watches, hearing aids and wireless keyboards and mice.
radio detection and ranging - Radar is an acronym for "radio detection and ranging.
radio frequency - Radio frequency (RF) is a measurement representing the oscillation rate of electromagnetic radiation spectrum, or electromagnetic radio waves, from frequencies ranging from 300 GHz to as low as 9 kHz.
radio frequency (RF, rf) - Radio frequency (RF) is a measurement representing the oscillation rate of electromagnetic radiation spectrum, or electromagnetic radio waves, from frequencies ranging from 300 GHz to as low as 9 kHz.
radio frequency identification - RFID (radio frequency identification) is a form of wireless communication that incorporates the use of electromagnetic or electrostatic coupling in the radio frequency portion of the electromagnetic spectrum to uniquely identify an object, animal or person.
radio paper - E-paper (sometimes called radio paper or just electronic paper) is a portable, reusable storage and display medium that looks like paper but can be repeatedly written on (refreshed) - by electronic means - thousands or millions of times.
radio silence - Radio silence is a mandatory or voluntary cessation of transmission for the duration of some sensitive time period.
radioactivity - Ionizing radiation, also (imprecisely) called radioactivity, is electromagnetic (EM) radiation whose waves contain energy sufficient to overcome the binding energy of electrons in atoms or molecule s, thus creating ion s.
Radiological Society of North America - Radiological Society of North America (RSNA) is a society of radiologists and similar health scientists that seeks to encourage connections between colleagues and provide scientists with a platform for radiology education and research.
Radiology Information System - A RIS is the traditional core software system for electronically managing medical images, scheduling and billing in hospital radiology departments and physician practices.
Radiology Information System (RIS) - A RIS is the traditional core software system for electronically managing medical images, scheduling and billing in hospital radiology departments and physician practices.
RADIUS - Remote Authentication Dial-In User Service (RADIUS) is a client/server protocol and software that enables remote access servers to communicate with a central server to authenticate dial-in users and authorize their access to the requested system or service.
RADIUS (Remote Authentication Dial-In User Service) - Remote Authentication Dial-In User Service (RADIUS) is a client/server protocol and software that enables remote access servers to communicate with a central server to authenticate dial-in users and authorize their access to the requested system or service.
RADOS (Reliable Autonomic Distributed Object Store) - Reliable Autonomic Distributed Object Store (RADOS) is an object storage service with the ability to scale to thousands of hardware devices by making use of management software that runs on each of the individual nodes.
RADOS Block Device (RBD) - A RADOS Block Device (RBD) is software that facilitates the storage of block-based data in the open source Ceph distributed storage system.
RAF - A risk assessment framework (RAF) is a strategy for prioritizing and sharing information about the security risks to an information technology (IT) infrastructure.
rafts, skirts and brims - Rafts, skirts and brims are structures created at the base of the bottom of a 3D print.
RAID - RAID (redundant array of independent disks) is a way of storing the same data in different places on multiple hard disks or solid-state drives to protect data in the case of a drive failure.
RAID (redundant array of independent disks) - RAID (redundant array of independent disks) is a way of storing the same data in different places on multiple hard disks or solid-state drives to protect data in the case of a drive failure.
RAID 0 (disk striping) - RAID 0 (disk striping) is the process of dividing a body of data into blocks and spreading the data blocks across multiple storage devices, such as hard disks or solid-state drives (SSDs), in a redundant array of independent disks (RAID) group.
RAID 1 - RAID 1 is one of the most common RAID levels and the most reliable.
RAID 10 (RAID 1+0) - RAID 10, also known as RAID 1+0, is a RAID configuration that combines disk mirroring and disk striping to protect data.
RAID 2 - RAID 2 is a technique that stripes data at the bit level using a Hamming code to detect errors.
RAID 3 (redundant array of independent disks) - RAID 3 is a RAID configuration that uses striping and parity, but it uses a parity disk to store the parity information generated by a RAID controller instead of striping it with the data.
RAID 4 (redundant array of independent disks) - RAID 4 is a RAID configuration that uses a dedicated parity disk and block-level striping across multiple disks.
RAID 5 - RAID 5 is a redundant array of independent disks configuration that uses disk striping with parity.
RAID 50 (RAID 5+0) - RAID 50, also known as RAID 5+0, combines distributed parity (RAID 5) with striping (RAID 0).
RAID 6 (redundant array of independent disks) - RAID 6, also known as double-parity RAID, uses two parity stripes on each disk.
RAID 7 (redundant array of independent disks) - RAID 7 is a trademarked RAID level owned by the now defunct Storage Computer Corp.
RAID controller - A RAID controller is a hardware device or software program used to manage hard disk drives (HDDs) or solid-state drives (SSDs) in a computer or storage array so they work as a logical unit.
RAID rebuild - A RAID rebuild is the data reconstruction process that occurs in a redundant array of independent disks (RAID) implementation when a hard disk drive fails.
RAID-6 - Double-parity RAID (redundant array of independent disks), also called diagonal-parity RAID, Advanced Data Guarding (RAID_ADG), or RAID-6, is a method of protecting against multiple storage drive failures by creating two sets of parity data on an array of hard disks.
RAID_ADG - Double-parity RAID (redundant array of independent disks), also called diagonal-parity RAID, Advanced Data Guarding (RAID_ADG), or RAID-6, is a method of protecting against multiple storage drive failures by creating two sets of parity data on an array of hard disks.
Rails - Ruby on Rails is an open-source framework for database-backed web development in Ruby, an object-oriented programming language similar to Perl and Python.
RAIN - RAIN (also called channel bonding, redundant array of independent nodes, reliable array of independent nodes, or random array of independent nodes) is a cluster of nodes connected in a network topology with multiple interfaces and redundant storage, providing fault tolerance and graceful degradation.
RAIN (redundant/reliable array of inexpensive/independent nodes) - RAIN (also called channel bonding, redundant array of independent nodes, reliable array of independent nodes, or random array of independent nodes) is a cluster of nodes connected in a network topology with multiple interfaces and redundant storage, providing fault tolerance and graceful degradation.
rain fade - Rain fade is an interruption of wireless communication signals as a result of rain or snow droplets whose separation approximates the signal wavelengths.
rainbow table - A rainbow table is a listing of all possible plaintext permutations of encrypted passwords specific to a given hash algorithm.
rainmaker (business) - A rainmaker is an individual who generates an unusually high amount of revenue for an organization by bringing new clients and new business to the company.
raised floor - A raised floor is a data center construction model in which a slightly higher floor is constructed above the building's original concrete slab floor, leaving the open space created between the two for wiring or cooling infrastructure.
RAM - RAM (Random Access Memory) is the hardware in a computing device where the operating system (OS), application programs and data in current use are kept so they can be quickly reached by the device's processor.
RAM (Random Access Memory) - RAM (Random Access Memory) is the hardware in a computing device where the operating system (OS), application programs and data in current use are kept so they can be quickly reached by the device's processor.
RAM based solid state drive - A RAM-based solid state drive is a storage device that is made from silicon microchips, has no moving parts and stores data electronically instead of magnetically.
RAM drive - A virtual hard drive file is a container file that acts similar to a physical hard drive.
RAM-based solid state drive - A RAM-based solid state drive is a storage device that is made from silicon microchips, has no moving parts and stores data electronically instead of magnetically.
RAM-based solid state drive (SSD) - A RAM-based solid state drive is a storage device that is made from silicon microchips, has no moving parts and stores data electronically instead of magnetically.
RAMAC - (IBM had an earlier system called RAMAC.
RAMAC - RAMAC (which stood for 'random access method of accounting and control') was the world's first computer disk storage system.
RAMAC (random access method of accounting and control) - RAMAC (which stood for 'random access method of accounting and control') was the world's first computer disk storage system.
Rambus DRAM - RDRAM (Rambus Dynamic Random Access Memory) is a memory subsystem that promises to transfer up to 1.
Rambus Dynamic Random Access Memory - Rambus Dynamic Random Access Memory, or RDRAM (Rambus DRAM), is a type of computer device active memory developed and licensed by Rambus Inc.
Rambus Dynamic Random Access Memory - RDRAM (Rambus Dynamic Random Access Memory) is a memory subsystem that promises to transfer up to 1.
RAMDAC - RAMDAC (random access memory digital-to-analog converter) is a microchip that converts digital image data into the analog data needed by a computer display.
RAMDAC (random access memory digital-to-analog converter) - RAMDAC (random access memory digital-to-analog converter) is a microchip that converts digital image data into the analog data needed by a computer display.
RancherOS (Linux) - RancherOS is a lightweight Linux operating system distribution that includes only the necessary libraries and services to deploy and scale containers.
RAND - RAND, an abbreviation for reasonable and nondiscriminatory, is a phrase that ISO, the international standards group, and other groups use to describe terms to which a patent contributor to a standard must adhere.
RAND (reasonable and nondiscriminatory) - RAND, an abbreviation for reasonable and nondiscriminatory, is a phrase that ISO, the international standards group, and other groups use to describe terms to which a patent contributor to a standard must adhere.
random access memory - RAM (Random Access Memory) is the hardware in a computing device where the operating system (OS), application programs and data in current use are kept so they can be quickly reached by the device's processor.
random access memory digital to analog converter - RAMDAC (random access memory digital-to-analog converter) is a microchip that converts digital image data into the analog data needed by a computer display.
random access memory digital-to-analog converter - RAMDAC (random access memory digital-to-analog converter) is a microchip that converts digital image data into the analog data needed by a computer display.
random access method of accounting and control - RAMAC (which stood for 'random access method of accounting and control') was the world's first computer disk storage system.
random array of independent nodes - RAIN (also called channel bonding, redundant array of independent nodes, reliable array of independent nodes, or random array of independent nodes) is a cluster of nodes connected in a network topology with multiple interfaces and redundant storage, providing fault tolerance and graceful degradation.
random number - Random numbers are numbers that occur in a sequence such that two conditions are met: ( the values are uniformly distributed over a defined interval or set, and (2) it is impossible to predict future values based on past or present ones.
random numbers - Random numbers are numbers that occur in a sequence such that two conditions are met: ( the values are uniformly distributed over a defined interval or set, and (2) it is impossible to predict future values based on past or present ones.
random walk hypothesis - Random walk hypothesis is a mathematical theory where a variable does not follow an apparent trend and moves seemingly at random.
range (statistical) - The terms mean, median, mode, and range describe properties of statistical distributions.
range expander - A Wi-Fi range extender, sometimes called a range expander, is a type of wireless repeater used to expand the reach of a wireless LAN.
range scan - The Stanford Bunny is a computer graphics test model (GTM) for 3-D graphics.
RankBrain - RankBrain is an artificial intelligence (AI) component of Google's Hummingbird search algorithm that uses machine learning to improve the way Web pages are positioned in search engine results pages (SERP).
Rankine cycle - The Rankine cycle is a method of providing power in a closed system where a fluid is evaporated to perform a task and re-condensed.
ransomware - Ransomware is a subset of malware in which the data on a victim's computer is locked -- typically by encryption -- and payment is demanded before the ransomed data is decrypted and access is returned to the victim.
ransomware - Ransomware is a subset of malware in which the data on a victim's computer is locked -- typically by encryption -- and payment is demanded before the ransomed data is decrypted and access is returned to the victim.
ransomware as a service (RaaS) - Ransomware as a service (RaaS) is the offering of pay-for-use malware created for extortion over stolen or encrypted data, known as ransomware.
ransomware recovery - Ransomware recovery is the process of resuming options following a cyberattack that demands payment in exchange for unlocking encrypted data.
Rapid Access Computing Environment - Rapid Access Computing Environment (RACE) is a United States federal government infrastructure-as-a-service (IaaS) initiative for developing and testing new Department of Defense (DoD) software applications.
Rapid Access Computing Environment (RACE) - Rapid Access Computing Environment (RACE) is a United States federal government infrastructure-as-a-service (IaaS) initiative for developing and testing new Department of Defense (DoD) software applications.
rapid application development - Rapid application development (RAD) is a model based on the concept that higher-quality products can be developed faster through more expedient processes, such as early prototyping, reusing software components and less formality in team communications.
rapid application development (RAD) - Rapid application development (RAD) is a model based on the concept that higher-quality products can be developed faster through more expedient processes, such as early prototyping, reusing software components and less formality in team communications.
rapid mobile app development (RMAD) - Rapid mobile application development (RMAD) uses low-code/no-code programming tools to speed the process of application creation for mobile platforms.
rapid prototyping - Rapid prototyping is the speedy creation of a full-scale model.
rapid prototyping - 3-D printing is a manufacturing process that builds layers to create a three-dimensional solid object from a digital model.
RARP - RARP (Reverse Address Resolution Protocol) is a protocol by which a physical machine in a local area network can request to learn its IP address from a gateway server's Address Resolution Protocol (ARP) table or cache.
RAS - Registration, admission, and status (RAS) is a component of a network protocol that involves the addition of (or refusal to add) new authorized users, the admission of (or refusal to admit) authorized users based on available bandwidth, and the tracking of the status of all users.
RAS - Reliability, Availability and Serviceability (RAS) is a set of related attributes that must be considered when designing, manufacturing, purchasing or using a computer product or component.
RAS - In computer memory technology, RAS (row address strobe) is a signal sent to a dynamic random access memory (DRAM) that tells it that an associated address is a row address.
RAS (row address strobe) - In computer memory technology, RAS (row address strobe) is a signal sent to a dynamic random access memory (DRAM) that tells it that an associated address is a row address.
RAS API - RAS API (Remote Access Server Application Program Interface) is an application program interface (API) in Microsoft Windows 95/98/NT systems that supports remote access for users with dial-up connections.
RASH - RASHport, also called RASH (Routing and Special Handling), is a digital communications protocol that allows customers of the NASDAQ (National Association of Securities Dealers Automated Quotations) to conduct business in the options market.
RASHport - RASHport, also called RASH (Routing and Special Handling), is a digital communications protocol that allows customers of the NASDAQ (National Association of Securities Dealers Automated Quotations) to conduct business in the options market.
RASHport (Routing and Special Handling) - RASHport, also called RASH (Routing and Special Handling), is a digital communications protocol that allows customers of the NASDAQ (National Association of Securities Dealers Automated Quotations) to conduct business in the options market.
Raspberry Pi - Raspberry Pi is a small, single-board computer that costs $35.
Raspberry Pi ($35 computer) - Raspberry Pi is a small, single-board computer that costs $35.
raster - Also see frame, raster graphics, and raster image processor.
raster graphics - Raster graphics are digital images created or captured (for example, by scanning in a photo) as a set of samples of a given space.
raster image processor - RIP is also an abbreviation for Routing Information Protocol.
raster image processor (RIP) - RIP is also an abbreviation for Routing Information Protocol.
rasterized - Raster graphics are digital images created or captured (for example, by scanning in a photo) as a set of samples of a given space.
RAT - A remote access Trojan (RAT) is a malware program that gives an intruder administrative control over a target computer.
RAT (remote access Trojan) - A remote access Trojan (RAT) is a malware program that gives an intruder administrative control over a target computer.
ratio - In general, a ratio is a way of concisely showing the relationship between two quantities of something.
rational number - A rational number is a number determined by the ratio of some integer p to some nonzero natural number q.
Rational Rose - Rational Rose, is a object-oriented Unified Modeling Language (UML) software design tool intended for visual modeling and component construction of enterprise-level software applications.
Rational Unified Process - Rational Unified Process (RUP) is an object-oriented and Web-enabled program development methodology.
Rational Unified Process (RUP) - Rational Unified Process (RUP) is an object-oriented and Web-enabled program development methodology.
raw data - Raw data (sometimes called source data, atomic data or primary data) is data that has not been processed for use.
raw data (source data or atomic data) - Raw data (sometimes called source data, atomic data or primary data) is data that has not been processed for use.
raw device mapping - Raw device mapping (RDM) is an option in the VMware server virtualization environment that enables a storage LUN to be directly connected to a virtual machine from the SAN.
raw device mapping (RDM) - Raw device mapping (RDM) is an option in the VMware server virtualization environment that enables a storage LUN to be directly connected to a virtual machine from the SAN.
raw spool files - EMF (Enhanced MetaFile) and raw are terms for spool file formats used in printing by the Windows operating system.
ray casting - Ray tracing (also called raytracing, ray-tracing or ray casting) is a technique for presenting three-dimensional (3D) images on a two-dimensional (2D) display by tracing a path of light through pixels on an image plane.
ray tracing - Ray tracing (also called raytracing, ray-tracing or ray casting) is a technique for presenting three-dimensional (3D) images on a two-dimensional (2D) display by tracing a path of light through pixels on an image plane.
ray tracing (raytracing, ray-tracing or ray casting) - Ray tracing (also called raytracing, ray-tracing or ray casting) is a technique for presenting three-dimensional (3D) images on a two-dimensional (2D) display by tracing a path of light through pixels on an image plane.
ray-tracing - Ray tracing (also called raytracing, ray-tracing or ray casting) is a technique for presenting three-dimensional (3D) images on a two-dimensional (2D) display by tracing a path of light through pixels on an image plane.
raytracing - Ray tracing (also called raytracing, ray-tracing or ray casting) is a technique for presenting three-dimensional (3D) images on a two-dimensional (2D) display by tracing a path of light through pixels on an image plane.
RBAC - Role-based access control (RBAC) is a method of restricting network access based on the roles of individual users within an enterprise.
RBOC - Regional Bell operating company (RBOC) is a term describing one of the U.
RCA video - Composite video, also called baseband video or RCA video, is the analog waveform that conveys the image data in a conventional National Television Standards Committee (NTSC) television signal.
RCP - A Rich Client Platform (RCP) is a specialized computer program intended for the creation of Java applications built on the Eclipse architecture.
RD - This page provides a description of the abbreviations and meanings of each of the lights that describe the "handshaking" between a computer modem and the UART chip in a computer.
RD - Running disparity (RD or rd) is the difference between the number of logic 1 bits and logic 0 bits between the start of a data sequence and a particular instant in time during its transmission.
RDBMS - A relational database management system (RDBMS) is a collection of programs and capabilities that enable IT teams and others to create, update, administer and otherwise interact with a relational database.
RDBMS (relational database management system) - A relational database management system (RDBMS) is a collection of programs and capabilities that enable IT teams and others to create, update, administer and otherwise interact with a relational database.
RDC - Remote deposit capture (RDC) is a system that allows a customer to scan checks remotely and transmit the check images to a bank for deposit, usually via an encrypted Internet connection.
RDF - The Resource Description Framework (RDF) is a general framework for how to describe any Internet resource such as a Web site and its content.
RDF Site Summary - RSS is an XML-based vocabulary that specifies a means of sharing news headlines and other content between Web sites.
RDM - Raw device mapping (RDM) is an option in the VMware server virtualization environment that enables a storage LUN to be directly connected to a virtual machine from the SAN.
RDMA - Remote Direct Memory Access (RDMA) is a technology that allows computers in a network to exchange data in main memory without involving the processor, cache or OS.
rDNS - Reverse DNS (rDNS) is a method of resolving an IP address into a domain name, just as the domain name system (DNS) resolves domain names into associated IP addresses.
RDO - RDO (Remote Data Objects) is an application program interface (API) from Microsoft that lets programmers writing Windows applications get access to and from both Microsoft and other database providers.
RDP - Remote desktop protocol (RDP) is a secure network communications protocol from Microsoft.
RDRAM - RDRAM (Rambus Dynamic Random Access Memory) is a memory subsystem that promises to transfer up to 1.
RDRAM - Rambus Dynamic Random Access Memory, or RDRAM (Rambus DRAM), is a type of computer device active memory developed and licensed by Rambus Inc.
RDRAM (Rambus DRAM) - Rambus Dynamic Random Access Memory, or RDRAM (Rambus DRAM), is a type of computer device active memory developed and licensed by Rambus Inc.
RDS - .
RDS - Remote Desktop Services (RDS) is an umbrella term for several specific features of Microsoft Windows Server that allow users to remotely access graphical desktops and Windows applications.
reach - In Internet marketing, reach is how many different people visit a Web site to see an ad and also what percentage of these people fall into the audience to which an ad is targeted.
React Native - React Native is an open source JavaScript framework for mobile application development.
reactance - Reactance, denoted X, is a form of opposition that electronic components exhibit to the passage of alternating current (alternating current) because of capacitance or inductance.
reactive power - In a direct current (DC) circuit, or in an alternating current (AC) circuit whose impedance is a pure resistance, the voltage and current are in phase, and the following formula holds: P = ErmsIrms where P is the power in watts, Erms is the root-mean-square (rms) voltage in volts, and Irms is the rms current in amperes.
reactive programming - Reactive programming describes a design paradigm that relies on asynchronous programming logic to handle real-time updates to otherwise static content.
reactive systems architecture - A computer systems paradigm that takes advantage of the responsiveness, flexibility and resiliency of reactive programming, so that various components can take continue to function and even thrive if any component is compromised.
read cache - A read cache is a computer storage component that temporarily keeps a copy of data from a slower permanent storage location in order to accelerate the fulfillment of future requests for the data.
read only memory - Read-only memory, or ROM, is a type of computer storage containing non-volatile, permanent data that, normally, can only be read, not written to.
read-intensive SSD (read-intensive solid-state drive) - A read-intensive solid-state drive (SSD) is a NAND flash-based storage or caching device used with applications that write data infrequently, in contrast to SSDs that target write-intensive workloads.
read-only - Read-only is a file attribute which only allows a user to view a file, restricting any writing to the file.
read-only memory - Read-only memory, or ROM, is a type of computer storage containing non-volatile, permanent data that, normally, can only be read, not written to.
read-only memory (ROM) - Read-only memory, or ROM, is a type of computer storage containing non-volatile, permanent data that, normally, can only be read, not written to.
readerboard - A readerboard is a visual display board that conveys information about a wide variety of subjects, including advertising for products or services, travel, news or event information.
reagent - A reagent is a chemical substance that is used to create a reaction in combination with some other substance.
Real Application Cluster - Real Application Cluster (RAC) is a component of the Oracle 9i database product that allows a database to be installed across multiple servers.
Real Application Cluster (RAC) - Real Application Cluster (RAC) is a component of the Oracle 9i database product that allows a database to be installed across multiple servers.
Real ID - Real ID is a driver's license that complies with standards mandated by the United States Real ID Act of 2005.
real life - Real life is a term used to describe what happens outside the Internet and implies that somehow the Internet furnishes us with a virtual life.
real number - A real number is any element of the set R, which is the union of the set of rational numbers and the set of irrational numbers.
real time - Real time is a level of computer responsiveness that a user senses as sufficiently immediate or that enables the computer to keep up with some external process (for example, to present visualizations of the weather as it constantly changes).
real time application - A real-time application (RTA) is an application program that functions within a time frame that the user senses as immediate or current.
real time business intelligence - Real-time business intelligence is an approach to data analytics that enables business users to get up-to-the-minute data by directly accessing operational systems.
real time clock - A real-time clock (RTC) is a battery-powered clock that is included in a microchip in a computer motherboard.
real time communications - Real-time communications (RTC) is any mode of telecommunications in which all users can exchange information instantly or with negligible latency.
real time communications dashboard - A real-time communications dashboard (RTCD) is an application designed to facilitate efficient, convenient real-time communications (RTC) in a business environment.
Real time gross settlement (RTGS) - Real Time Gross Settlement (RTGS) is an electronic form of funds transfer where the transmission takes place on a real time basis.
real time location system - A real-time location system (RTLS) is one of a number of technologies used to pinpoint the current geographic position and location of a target.
real time operating system - A real-time operating system (RTOS) is an operating system that guarantees a certain capability within a specified time constraint.
Real Time Streaming Protocol - Real Time Streaming Protocol (RTSP) is an application-level network communication system that transfers real-time data from multimedia to an endpoint device by communicating directly with the server streaming the data.
Real Time Streaming Protocol (RTSP) - Real Time Streaming Protocol (RTSP) is an application-level network communication system that transfers real-time data from multimedia to an endpoint device by communicating directly with the server streaming the data.
Real Time Transport Protocol - The Real-Time Transport Protocol (RTP) is an Internet protocol standard that specifies a way for programs to manage the real-time transmission of multimedia data over either unicast or multicast network services.
real world time - Wall time, also called real-world time or wall-clock time, refers to elapsed time as determined by a chronometer such as a wristwatch or wall clock.
real-time - Real time is a level of computer responsiveness that a user senses as sufficiently immediate or that enables the computer to keep up with some external process (for example, to present visualizations of the weather as it constantly changes).
real-time analytics - Real-time analytics is the use of data and related resources for analysis as soon as it enters the system.
real-time application - A real-time application (RTA) is an application program that functions within a time frame that the user senses as immediate or current.
real-time application (RTA) - A real-time application (RTA) is an application program that functions within a time frame that the user senses as immediate or current.
real-time bidding (RTB) - Real-time bidding (RTB) is an automated auction process for the purchase of ad impressions on websites.
real-time business intelligence - Real-time business intelligence is an approach to data analytics that enables business users to get up-to-the-minute data by directly accessing operational systems.
real-time business intelligence (BI) - Real-time business intelligence is an approach to data analytics that enables business users to get up-to-the-minute data by directly accessing operational systems.
real-time clock - A real-time clock (RTC) is a battery-powered clock that is included in a microchip in a computer motherboard.
real-time clock (RTC) - A real-time clock (RTC) is a battery-powered clock that is included in a microchip in a computer motherboard.
real-time collaboration - Real-time collaboration is using the Internet and presence technology to communicate with co-workers as if they were in the same room, even if they are located on the other side of the world.
real-time communications - Real-time communications (RTC) is any mode of telecommunications in which all users can exchange information instantly or with negligible latency.
real-time communications (RTC) - Real-time communications (RTC) is any mode of telecommunications in which all users can exchange information instantly or with negligible latency.
real-time communications dashboard - A real-time communications dashboard (RTCD) is an application designed to facilitate efficient, convenient real-time communications (RTC) in a business environment.
real-time communications dashboard (RTCD) - A real-time communications dashboard (RTCD) is an application designed to facilitate efficient, convenient real-time communications (RTC) in a business environment.
Real-time CRM Analytics - CRM (customer relationship management) analytics comprises all programming that analyzes data about customers and presents it to help facilitate and streamline better business decisions.
real-time data analytics - Real-time analytics is the use of data and related resources for analysis as soon as it enters the system.
real-time data integration - Real-time analytics is the use of data and related resources for analysis as soon as it enters the system.
real-time intelligence - Real-time analytics is the use of data and related resources for analysis as soon as it enters the system.
real-time location system - A real-time location system (RTLS) is one of a number of technologies used to pinpoint the current geographic position and location of a target.
real-time location system (RTLS) - A real-time location system (RTLS) is one of a number of technologies used to pinpoint the current geographic position and location of a target.
real-time marketing - Real-time marketing is a method of targeting individual consumers wherever they may be, based on current data.
real-time monitoring - Real-time (data) monitoring is the delivery of continuously updated information streaming at zero or low latency.
real-time operating system - A real-time operating system (RTOS) is an operating system that guarantees a certain capability within a specified time constraint.
real-time operating system (RTOS) - A real-time operating system (RTOS) is an operating system that guarantees a certain capability within a specified time constraint.
real-time system - A real-time system is a type of hardware or software that operates with a time constraint.
Real-Time Transport Control Protocol (RTCP) - Real-Time Transport Control Protocol (RTCP) is a protocol that works with Real-Time Protocol (RTP) to monitor data delivery on large multicast networks, mainly for streaming media, telephony and video conferencing.
Real-Time Transport Protocol - The Real-Time Transport Protocol (RTP) is an Internet protocol standard that specifies a way for programs to manage the real-time transmission of multimedia data over either unicast or multicast network services.
Real-Time Transport Protocol (RTP) - The Real-Time Transport Protocol (RTP) is an Internet protocol standard that specifies a way for programs to manage the real-time transmission of multimedia data over either unicast or multicast network services.
real-world time - Wall time, also called real-world time or wall-clock time, refers to elapsed time as determined by a chronometer such as a wristwatch or wall clock.
RealAudio - RealAudio is a continous or streaming sound technology from Progressive Networks' RealAudio.
reality capture - Reality capture is the use of various technical means to capture a digital 3D model representation of a subject from the real world.
reality check - A reality check is a second opinion, either requested or provided voluntarily, about the status of some current situation.
reality computing - Reality computing is the use of reality capture in conjunction with computer aided simulation, design and manufacturing CAD/CAM.
reality testing - Reality testing is a check performed to try to determine if someone’s thinking conforms to the general perception of what is real.
Really Simple Syndication - RSS is an XML-based vocabulary that specifies a means of sharing news headlines and other content between Web sites.
Rear Admiral Grace Murray Hopper - Grace Murray Hopper (1906-1992) was a pioneer in computer science.
reasonable and nondiscriminatory - RAND, an abbreviation for reasonable and nondiscriminatory, is a phrase that ISO, the international standards group, and other groups use to describe terms to which a patent contributor to a standard must adhere.
reboot - To reboot is to restart a computer and reload the operating system.
reboot (warm boot, cold boot) - To reboot is to restart a computer and reload the operating system.
rebranding - Rebranding is an update of the materials and presentation used to represent a business.
REC - A Regional Extension Center (REC) is an organization that has received funding under the Health Information Technology for Economic and Clinical Health Act (HITECH Act) to assist health care providers with the selection and implementation of electronic health record (EHR) technology.
Receive Segment Coalescing (RSC) - Receive Segment Coalescing (RSC) is an offload technology in Windows Server 2012 and Windows Server 2012 R2 that can help reduce how much of the CPU is used in network processing.
recency frequency monetary - RFM analysis is a marketing technique used to quantitatively rank and group customers based on the recency, frequency and monetary total of their recent transactions to identify the best customers and perform targeted marketing campaigns.
recency, frequency, monetary analysis - RFM analysis is a marketing technique used to quantitatively rank and group customers based on the recency, frequency and monetary total of their recent transactions to identify the best customers and perform targeted marketing campaigns.
receptacle - A female connector is a connector attached to a wire, cable, or piece of hardware, having one or more recessed holes with electrical terminals inside, and constructed in such a way that a plug with exposed conductors (male connector) can be inserted snugly into it to ensure a reliable physical and electrical connection.
rechargeable battery - Rechargeable batteries allow for multiple usages from a cell, reducing waste and generally providing a better long-term investment in terms of dollars spent for usable device time.
reciprocal meter - The reciprocal meter is the standard unit of wave number for electromagnetic fields (EM fields).
reciprocity - In negotiation, reciprocity is a mutual or cooperative exchange of favors or privileges.
recommendation engine - Recommendation engines are common among online retail websites, such as Amazon.
reconfigurable optical add drop multiplexer - An ROADM (reconfigurable optical add-drop multiplexer) is a device that can add, block, pass or redirect modulated infrared (IR) and visible light beams of various wavelengths in a fiber optic network.
reconfigurable optical add-drop multiplexer - An ROADM (reconfigurable optical add-drop multiplexer) is a device that can add, block, pass or redirect modulated infrared (IR) and visible light beams of various wavelengths in a fiber optic network.
reconfigurable processor - A reconfigurable processor is a microprocessor with erasable hardware that can rewire itself dynamically.
reconfigurable tactile display - A reconfigurable tactile display (RTD) is a control interface that provides physical touch input, but that can be configured by programming.
reconfigurable tactile display (RTD) - A reconfigurable tactile display (RTD) is a control interface that provides physical touch input, but that can be configured by programming.
record - In computer data processing, a record is a collection of data items arranged for processing by a program.
record standardization - In data management, record standardization is a process in which files are first parsed (assigned to appropriate fields in a database record) and then translated to a common format.
recordable CD - CD-R (for compact disc, recordable) is a type of write once, read many (WORM) compact disc (CD) format that allows one-time recording on a disc.
recordable compact disc - CD-R (for compact disc, recordable) is a type of write once, read many (WORM) compact disc (CD) format that allows one-time recording on a disc.
recordable DVD - Recordable DVD (sometimes called writable DVD) is a DVD technology that allows a PC user to write data one or more times to a DVD with the PC's DVD drive.
recordable DVD (writable DVD) - Recordable DVD (sometimes called writable DVD) is a DVD technology that allows a PC user to write data one or more times to a DVD with the PC's DVD drive.
Recording Industry Association of America - The RIAA (Recording Industry Association of America) is an organization that represents the music recording industry's intellectual property rights.
records information management - Records information management (RIM) is a corporate area of endeavor involving the administration of all business records through their life cycle.
records information management (RIM) - Records information management (RIM) is a corporate area of endeavor involving the administration of all business records through their life cycle.
records management - Records management (RM) is the administration of records and documented information for the entirety of its lifecycle, which includes creation, maintenance, use, storage, retrieval and disposal.
records retention schedule - A records retention schedule is a policy that depicts how long data items must be kept, as well as the disposal guidelines for these data items.
recovery point objective - The recovery point objective (RPO) is the age of files that must be recovered from backup storage for normal operations to resume if a computer, system or network goes down as a result of a hardware, program or communications failure.
recovery point objective (RPO) - The recovery point objective (RPO) is the age of files that must be recovered from backup storage for normal operations to resume if a computer, system or network goes down as a result of a hardware, program or communications failure.
recovery time objective - The recovery time objective (RTO) is the maximum tolerable length of time that a computer, system, network or application can be down after a failure or disaster occurs.
recovery time objective (RTO) - The recovery time objective (RTO) is the maximum tolerable length of time that a computer, system, network or application can be down after a failure or disaster occurs.
recruitment - Recruitment is the process of finding, screening, hiring and eventually onboarding qualified job candidates.
recruitment management system - A recruitment management system (RMS) is a set of tools designed to manage the recruiting process.
recruitment marketing - Recruitment marketing is the combination of strategies and tools used by an organization to engage and nurture potential talent in the pre-applicant phase.
recruitment process outsourcing (RPO) - Recruitment process outsourcing (RPO) involves an employer turning the responsibility of finding potential job candidates over to a third-party service provider.
rectangular coordinates - Cartesian coordinates, also called rectangular coordinates, provide a method of rendering graphs and indicating the positions of points on a two-dimensional (2D) surface or in three-dimensional (3D) space.
recurrent neural networks - Recurrent neural networks are a type of advanced neural network that uses directed cycles in memory in order to perform recurrent tasks on a body of data.
recursion - In computer programming, a recursion (noun, pronounced ree-KUHR-zhion) is programming that is recursive (adjective), and recursive has two related meanings: A recursive procedure or routine is one that has the ability to call itself.
recursive acronym - An acronym (pronounced AK-ruh-nihm, from Greek acro- in the sense of extreme or tip and onyma or name) is an abbreviation of several words in such a way that the abbreviation itself forms a word.
recursive DNS query - A recursive DNS query is a request from a client for a website that must be responded to with either the sought response or an error message stating that the site does not exist.
recursive DNS server - A recursive DNS server is a domain name system server that takes website name or URL (uniform resource locator) requests from users and checks the records attained from authoritative DNS servers for the associated IP address.
recycling - Recycling is the practice of reusing items that would otherwise be discarded as waste.
Red Book - The Red Book is the 1980 document that provides the specifications for the standard compact disc (CD) developed by Sony and Philips.
Red Flags Rule - The Red Flags Rule (RFR) is a set of United States federal regulations that require certain businesses and organizations to develop and implement documented plans to protect consumers from identity theft.
Red Flags Rule (RFR) - The Red Flags Rule (RFR) is a set of United States federal regulations that require certain businesses and organizations to develop and implement documented plans to protect consumers from identity theft.
red green blue - RGB (red, green, and blue) refers to a system for representing the colors to be used on a computer display.
Red Hat - Red Hat is a leading software company in the business of assembling open source components for the Linux operating system and related programs into a distribution package that can easily be ordered and implemented.
Red Hat Atomic Host - Red Hat Atomic Host is a variant of the Red Hat Enterprise Linux supported, open source operating system, designed to be a minimal OS with optimizations for container hosting.
Red Hat Certified Cloud Provider - A Red Hat Certified Cloud Provider is a member in the company's cloud partner program that has met requirements to offer Red Hat products and services in a cloud computing environment.
Red Hat Cloud Partner Program - The Red Hat Cloud Partner Program is an initiative offering Red Hat certification for cloud providers.
Red Hat Enterprise Linux - Red Hat Enterprise Linux (RHEL) is a distribution of the Linux operating system developed for the business market.
Red Hat Enterprise Linux (RHEL) - Red Hat Enterprise Linux (RHEL) is a distribution of the Linux operating system developed for the business market.
Red Hat Linux - Red Hat is a leading software company in the business of assembling open source components for the Linux operating system and related programs into a distribution package that can easily be ordered and implemented.
Red Hat Mobile Application Platform - Red Hat Mobile Application Platform is a software development framework that enables organizations to extend their development capabilities to mobile by developing collaboratively, centralizing control of security and using back-end integration with a range of cloud deployments.
Red Hat OpenShift - Red Hat OpenShift is a multifaceted, open source container application platform from Red Hat Inc.
Red Hat OpenStack Platform - Red Hat OpenStack Platform is a commercially supported distribution of open source OpenStack software designed to build and manage large pools of compute, storage and networking resources in public and private clouds.
Red hat Package Manager - RPM Package Manager (also known simply as RPM), originally called the Red-hat Package Manager, is a program for installing, uninstalling, and managing software packages in Linux.
Red Hat Satellite - Red Hat Satellite is an IT infrastructure management tool primarily used to monitor and manage Red Hat Enterprise Linux environments.
Red Hat Storage (RHS) - Red Hat Storage is a new distributed file system based on the Gluster file system.
Red Hat Virtualization (RHV) - Red Hat Virtualization (RHV) is an enterprise-class virtualization platform produced by Red Hat.
red herring - A red herring is a logical fallacy in which irrelevant information is presented alongside relevant information, distracting attention from that relevant information.
red screen of death - The red screen of death is a term coined by some early testers of Longhorn (the code name for Microsoft's latest Windows operating system) who, in May 2005, came across an error message appearing against an all-red display screen.
red team - An ethical hacker, or white hat hacker, is an information security expert authorized by an organization to penetrate computing infrastructure to find security vulnerabilities a malicious hacker could exploit.
red team-blue team - Red team-blue team is a simulation and training exercise in which members of the same organization are divided into two teams that compete against each other in combative exercises.
red teaming - An ethical hacker, or white hat hacker, is an information security expert authorized by an organization to penetrate computing infrastructure to find security vulnerabilities a malicious hacker could exploit.
red teaming - Red teaming is the practice of rigorously challenging plans, policies, systems and assumptions by adopting an adversarial approach.
Red-hat Package Manager - RPM Package Manager (also known simply as RPM), originally called the Red-hat Package Manager, is a program for installing, uninstalling, and managing software packages in Linux.
redacted - To redact is to edit, or prepare for publishing.
redacting - To redact is to edit, or prepare for publishing.
redaction - To redact is to edit, or prepare for publishing.
Reddit - Reddit is a social news website and forum where content is socially curated and promoted by site members through voting.
Redington India - Redington India is an India-based multi-national distributor of consumer electronics, home appliances, telecom, and IT products.
redirect - On a Web site, redirection is a technique for moving visitors to a different Web page than the one they request, usually because the page requested is unavailable.
redirection - On a Web site, redirection is a technique for moving visitors to a different Web page than the one they request, usually because the page requested is unavailable.
Redis - Redis is an open source key-value database that supports various data structures.
Reduce reuse recycle - Reduce, reuse and recycle (R3) are the three essential components of environmentally-responsible consumer behavior.
Reduce, reuse, recycle (R3) - Reduce, reuse and recycle (R3) are the three essential components of environmentally-responsible consumer behavior.
reduced instruction set computer - RISC (reduced instruction set computer) is a microprocessor that is designed to perform a smaller number of types of computer instructions so that it can operate at a higher speed (perform more millions of instructions per second, or MIPS).
redundancy - Redundancy is a system design in which a component is duplicated so if it fails there will be a backup.
redundancy - Redundancy can have several meanings, but commonly refers to spare hardware that is kept online or to duplicate data.
redundant - Redundancy can have several meanings, but commonly refers to spare hardware that is kept online or to duplicate data.
redundant array of independent disks - RAID (redundant array of independent disks) is a way of storing the same data in different places on multiple hard disks or solid-state drives to protect data in the case of a drive failure.
redundant array of independent nodes - RAIN (also called channel bonding, redundant array of independent nodes, reliable array of independent nodes, or random array of independent nodes) is a cluster of nodes connected in a network topology with multiple interfaces and redundant storage, providing fault tolerance and graceful degradation.
redundant array of inexpensive disks - RAID (redundant array of independent disks) is a way of storing the same data in different places on multiple hard disks or solid-state drives to protect data in the case of a drive failure.
redundant array of inexpensive nodes - RAIN (also called channel bonding, redundant array of independent nodes, reliable array of independent nodes, or random array of independent nodes) is a cluster of nodes connected in a network topology with multiple interfaces and redundant storage, providing fault tolerance and graceful degradation.
reentrant - Reentrant is an adjective that describes a computer program or routine that is written so that the same copy in memory can be shared by multiple users.
refactoring - Refactoring is "the process of changing a software system in such a way that it does not alter the external behavior of the code yet improves its internal structure," according to Martin Fowler, the "father" of refactoring.
reference architecture - A reference architecture is a document or set of documents to which a project manager or other interested party can refer to for best practices.
reference checking software - Reference checking software is programming that automates the process of contacting and questioning the references of job applicants.
reference data - Fixed data (sometimes referred to as permanent data) is data that is not, under normal circumstances, subject to change.
reference data - Reference data, in the context of data management, are the data objects relevant to transactions, consisting of sets of values, statuses or classification schema.
Reference Information Model - The Reference Information Model (RIM) is an information model for health care data developed by Health Level 7 International (HL7).
Reference Information Model (RIM) - The Reference Information Model (RIM) is an information model for health care data developed by Health Level 7 International (HL7).
referral partner - A referral partner is a business associate who recommends a particular company and its services in exchange for something of value.
refresh - In a computer display, to refresh is to redraw the image information from memory.
refresh rate - The refresh rate is the number of times a display's image is repainted or refreshed per second.
ReFS - Resilient File System (ReFS) is a file system developed by Microsoft for use on the Windows operating system (OS) that's designed to overcome some of the limitations in the New Technology File System (NTFS).
refurbish - Refurbish, in everyday language, is "to renew or to restore to a new condition and/or appearance".
refurbished - Refurbish, in everyday language, is "to renew or to restore to a new condition and/or appearance".
refurbishing - Refurbish, in everyday language, is "to renew or to restore to a new condition and/or appearance".
regex - A regular expression (sometimes abbreviated to "regex") is a way for a computer user or programmer to express how a computer program should look for a specified pattern in text and then what the program is to do when each pattern match is found.
Regin malware - Regin is a complex strain of back-door Trojan malware that uses a multi-staged, modular approach to infect its targets for the purpose of monitoring user activity and stealing data.
regional Bell operating company - Regional Bell operating company (RBOC) is a term describing one of the U.
regional Bell operating company (RBOC) - Regional Bell operating company (RBOC) is a term describing one of the U.
Regional BGAN - BGAN (Broadband Global Area Network) is a mobile communications system created to transmit broadband wireless voice and data communications almost anywhere on the earth's surface.
Regional Extension Center - A Regional Extension Center (REC) is an organization that has received funding under the Health Information Technology for Economic and Clinical Health Act (HITECH Act) to assist health care providers with the selection and implementation of electronic health record (EHR) technology.
Regional Extension Center (REC) - A Regional Extension Center (REC) is an organization that has received funding under the Health Information Technology for Economic and Clinical Health Act (HITECH Act) to assist health care providers with the selection and implementation of electronic health record (EHR) technology.
Regional Health Information Organization - A Regional Health Information Organization (RHIO) is a group of organizations within a specific area that share healthcare-related information electronically according to accepted healthcare information technology (HIT) standards.
Regional Health Information Organization (RHIO) - A Regional Health Information Organization (RHIO) is a group of organizations within a specific area that share healthcare-related information electronically according to accepted healthcare information technology (HIT) standards.
Regional Internet Registry - A Regional Internet Registry (RIR) is a not-for-profit organization that oversees Internet Protocol (IP) address space and the Autonomous System (AS) numbers within a specific geographical region.
Regional Internet Registry (RIR) - A Regional Internet Registry (RIR) is a not-for-profit organization that oversees Internet Protocol (IP) address space and the Autonomous System (AS) numbers within a specific geographical region.
register (processor register, CPU register) - A processor register is one of a small set of data holding places that are part of the computer processor.
Register of Known Spam Operations - The Register of Known Spam Operations (ROKSO) is a list of over 500 professional spammers that is maintained by the Spamhaus Project, an organization dedicated to identifying and exposing spam operators.
Register of Known Spam Operations (ROKSO) - The Register of Known Spam Operations (ROKSO) is a list of over 500 professional spammers that is maintained by the Spamhaus Project, an organization dedicated to identifying and exposing spam operators.
registered health information administrator - An RHIA, or registered health information administrator, is a certified professional who oversees the creation and use of patient health information, including analyzing that data.
registered health information technician - A registered health information technician (RHIT) is a certified professional who stores and verifies the accuracy and completeness of electronic health records.
registered health information technician (RHIT) - A registered health information technician (RHIT) is a certified professional who stores and verifies the accuracy and completeness of electronic health records.
registered port numbers - The registered port numbers are the port numbers that companies and other users register with the Internet Corporation for Assigned Names and Numbers (ICANN) for use by the applications that communicate using the Internet's Transmission Control Protocol (TCP) or the User Datagram Protocol (UDP).
registration admission and status - Registration, admission, and status (RAS) is a component of a network protocol that involves the addition of (or refusal to add) new authorized users, the admission of (or refusal to admit) authorized users based on available bandwidth, and the tracking of the status of all users.
registration authority - A registration authority (RA) is an authority in a network that verifies user requests for a digital certificate and tells the certificate authority (CA) to issue it.
registration authority (RA) - A registration authority (RA) is an authority in a network that verifies user requests for a digital certificate and tells the certificate authority (CA) to issue it.
registration, admission, and status (RAS) - Registration, admission, and status (RAS) is a component of a network protocol that involves the addition of (or refusal to add) new authorized users, the admission of (or refusal to admit) authorized users based on available bandwidth, and the tracking of the status of all users.
registry - In the Microsoft Windows operating systems beginning with Windows 95, the registry is a single place for keeping such information as what hardware is attached, what system options have been selected, how computer memory is set up, and what application programs are to be present when the operating system is started.
registry key - In the Windows 98, CE, NT, and 2000 operating systems, a registry key is an organizational unit in the Windows registry.
registry virtualization (Windows Vista) - Registry virtualization (RV) is a compatibility application that supports write operations in a registry.
regression testing - Regression testing is a type of software test that assesses if changes to an application, or other related software components, introduce defects.
RegTech - RegTech, or regulatory technology, is a term used to describe technology that is used to help streamline the process of regulatory compliance.
regular expression - A regular expression (sometimes abbreviated to "regex") is a way for a computer user or programmer to express how a computer program should look for a specified pattern in text and then what the program is to do when each pattern match is found.
regular expression (regex) - A regular expression (sometimes abbreviated to "regex") is a way for a computer user or programmer to express how a computer program should look for a specified pattern in text and then what the program is to do when each pattern match is found.
Regulation Fair Disclosure (Regulation FD or Reg FD) - Regulation Fair Disclosure is a rule passed by the U.
Regulation of Investigatory Powers Act - RIPA (Regulation of Investigatory Powers Act) is a law enacted in the United Kingdom in 2000 to govern the interception and use of electronic communications.
Regulation of Investigatory Powers Act (RIPA) - RIPA (Regulation of Investigatory Powers Act) is a law enacted in the United Kingdom in 2000 to govern the interception and use of electronic communications.
Regulation SCI (Regulation Systems Compliance and Integrity) - Regulation SCI is a set of compliance rules designed by the SEC to monitor and regulate the technology infrastructure of U.
regulatory compliance - Regulatory compliance is an organization's adherence to laws, regulations, guidelines and specifications relevant to its business processes.
rehome - In a Windows environment, rehoming is the process of moving public folders from one Exchange server to another.
rehoming - In a Windows environment, rehoming is the process of moving public folders from one Exchange server to another.
reinforcement learning - Reinforcement learning is a machine learning training method based on rewarding desired behaviors and/or punishing undesired ones.
reinforcement theory - Reinforcement theory is a psychological principle maintaining that behaviors are shaped by their consequences and that, accordingly, individual behaviors can be changed through rewards and punishments.
reinsurance - Reinsurance protects insurers against excessive losses, helping to ensure their sustainability and prevent bankruptcy and failure as a business.
REJ - NAK is an abbreviation for negative acknowledgment or not acknowledged.
relational database - A relational database is a collection of information that organizes data points with defined relationships for easy access.
relational database management system - A relational database management system (RDBMS) is a collection of programs and capabilities that enable IT teams and others to create, update, administer and otherwise interact with a relational database.
relational online analytical processing - Relational online analytical processing (ROLAP) is a form of online analytical processing (OLAP) that performs dynamic multidimensional analysis of data stored in a relational database rather than in a multidimensional database (which is usually considered the OLAP standard).
relational online analytical processing (ROLAP) - Relational online analytical processing (ROLAP) is a form of online analytical processing (OLAP) that performs dynamic multidimensional analysis of data stored in a relational database rather than in a multidimensional database (which is usually considered the OLAP standard).
relationship marketing - Relationship marketing is a customer relationship management strategy designed to encourage strong, lasting customer connections to a brand.
relative ID - In Windows 2000, the relative identifier (RID) is the part of a security ID (SID) that uniquely identifies an account or group within a domain.
relative identifier - In Windows 2000, the relative identifier (RID) is the part of a security ID (SID) that uniquely identifies an account or group within a domain.
relative identifier (RID) - In Windows 2000, the relative identifier (RID) is the part of a security ID (SID) that uniquely identifies an account or group within a domain.
RELAX Next Generation - RELAX NG (RELAX Next Generation) is a deliberately simple and straightforward XML markup language for metadocument data, aka schemas, developed in response to the W3C XML Schema standard.
RELAX NG - RELAX NG (RELAX Next Generation) is a deliberately simple and straightforward XML markup language for metadocument data, aka schemas, developed in response to the W3C XML Schema standard.
RELAX NG (RELAX Next Generation) - RELAX NG (RELAX Next Generation) is a deliberately simple and straightforward XML markup language for metadocument data, aka schemas, developed in response to the W3C XML Schema standard.
release - A release is the distribution of the final version of an application.
release management - Release management is a software engineering process intended to oversee the development, testing, deployment and support of software releases.
release plan - In agile software development, a release plan is an evolving flowchart that describes which features will be delivered in upcoming releases.
release train engineer (RTE) - A release train engineer (RTE) is an information technology (IT) professional in a large enterprise who drives continuous development initiatives while also acting as a full time chief scrum master for a Scaled Agile Framework (SAFe).
relentless incrementalism - Relentless incrementalism is a process in which something substantial is built through the accumulation of small but incessant additions.
reliability - Reliability is an attribute of any computer-related component (software, or hardware, or a network, for example) that consistently performs according to its specifications.
Reliability Availability and Serviceability - Reliability, Availability and Serviceability (RAS) is a set of related attributes that must be considered when designing, manufacturing, purchasing or using a computer product or component.
Reliability, Availability and Serviceability (RAS) - Reliability, Availability and Serviceability (RAS) is a set of related attributes that must be considered when designing, manufacturing, purchasing or using a computer product or component.
reliable array of independent nodes - RAIN (also called channel bonding, redundant array of independent nodes, reliable array of independent nodes, or random array of independent nodes) is a cluster of nodes connected in a network topology with multiple interfaces and redundant storage, providing fault tolerance and graceful degradation.
reliable array of inexpensive nodes - RAIN (also called channel bonding, redundant array of independent nodes, reliable array of independent nodes, or random array of independent nodes) is a cluster of nodes connected in a network topology with multiple interfaces and redundant storage, providing fault tolerance and graceful degradation.
reload - In computers, to reload is to start a program over again, usually because it has crashed or because it has begun to display aberrant behavior.
remailer - A remailer is an Internet site to which you can send e-mail for forwarding to an intended destination while concealing your own e-mail address.
remote access - Remote access is the ability for an authorized person to access a computer or a network from a geographical distance through a network connection.
remote access server - Remote access is the ability for an authorized person to access a computer or a network from a geographical distance through a network connection.
Remote Access Server Application Program Interface - RAS API (Remote Access Server Application Program Interface) is an application program interface (API) in Microsoft Windows 95/98/NT systems that supports remote access for users with dial-up connections.
Remote Access Server Application Program Interface (RAS API) - RAS API (Remote Access Server Application Program Interface) is an application program interface (API) in Microsoft Windows 95/98/NT systems that supports remote access for users with dial-up connections.
Remote Access server role - Remote Access is a server role in Microsoft Windows Server 2012 and Windows Server 2012 R2 and offers administrators a central point for administering, configuring and monitoring factors related to network access.
remote access Trojan - A remote access Trojan (RAT) is a malware program that gives an intruder administrative control over a target computer.
Remote Authentication Dial In User Service - Remote Authentication Dial-In User Service (RADIUS) is a client/server protocol and software that enables remote access servers to communicate with a central server to authenticate dial-in users and authorize their access to the requested system or service.
Remote Authentication Dial-In User Service - Remote Authentication Dial-In User Service (RADIUS) is a client/server protocol and software that enables remote access servers to communicate with a central server to authenticate dial-in users and authorize their access to the requested system or service.
remote backup - Online data backup (remote data backup) is a method of off-site storage in which data is regularly backed up over a network on a remote server, typically hosted by a provider.
remote clustering - WAN clustering, also called geoclustering, high-availability clustering or remote clustering, is the use of multiple redundant computing resources located in different geographical locations to form what appears to be a single highly-available system.
remote code execution (RCE) - Remote code execution is a security vulnerability that allows an attacker to execute codes from a remote server.
Remote Data Objects - RDO (Remote Data Objects) is an application program interface (API) from Microsoft that lets programmers writing Windows applications get access to and from both Microsoft and other database providers.
Remote Data Objects (RDO) - RDO (Remote Data Objects) is an application program interface (API) from Microsoft that lets programmers writing Windows applications get access to and from both Microsoft and other database providers.
remote deposit capture - Remote deposit capture (RDC) is a system that allows a customer to scan checks remotely and transmit the check images to a bank for deposit, usually via an encrypted Internet connection.
remote deposit capture (RDC) - Remote deposit capture (RDC) is a system that allows a customer to scan checks remotely and transmit the check images to a bank for deposit, usually via an encrypted Internet connection.
remote desktop - Remote desktop is a program or an operating system feature that allows a user to connect to a computer in another location, see that computer's desktop and interact with it as if it were local.
remote desktop connection broker - A remote desktop connection broker allows clients to access various types of server-hosted desktops and applications.
Remote Desktop Connection Manager (RDCMan) - Remote Desktop Connection Manager (RDCMan) is a tool that allows information technology (IT) administrators to organize, group and control remote desktop connections.
Remote Desktop Protocol - Remote desktop protocol (RDP) is a secure network communications protocol from Microsoft.
remote desktop protocol (RDP) - Remote desktop protocol (RDP) is a secure network communications protocol from Microsoft.
Remote Desktop Services - Remote Desktop Services (RDS) is an umbrella term for several specific features of Microsoft Windows Server that allow users to remotely access graphical desktops and Windows applications.
Remote Desktop Services (RDS) - Remote Desktop Services (RDS) is an umbrella term for several specific features of Microsoft Windows Server that allow users to remotely access graphical desktops and Windows applications.
Remote Desktop Session Host (RDSH) - Remote Desktop Session Host (RDSH) is a role in Remote Desktop Services (RDS).
Remote Direct Memory Access - Remote Direct Memory Access (RDMA) is a technology that allows computers in a network to exchange data in main memory without involving the processor, cache or OS.
Remote Direct Memory Access (RDMA) - Remote Direct Memory Access (RDMA) is a technology that allows computers in a network to exchange data in main memory without involving the processor, cache or OS.
remote display protocol - A remote display protocol is a special set of data transfer rules that makes it possible for a desktop hosted at one place to display on a client's screen at another location.
Remote DMA - Remote Direct Memory Access (RDMA) is a technology that allows computers in a network to exchange data in main memory without involving the processor, cache or OS.
Remote Function Call - RFC is also an abbreviation for Request for Comments.
Remote Function Call (RFC) - RFC is also an abbreviation for Request for Comments.
remote hands - Remote hands is the general name for a service offered by colocation providers that enables customers to delegate IT management and maintenance tasks in a colocation facility to technicians hired by the provider.
Remote Insight Board -- Lights Out Edition - The Remote Insight Board -- Lights Out Edition (RIBLOE) is a Peripheral Component Interconnect (PCI) card intended for the remote management of Compaq servers.
Remote Insight Board Lights Out Edition - The Remote Insight Board -- Lights Out Edition (RIBLOE) is a Peripheral Component Interconnect (PCI) card intended for the remote management of Compaq servers.
Remote Installation Service - Remote Installation Service (RIS) is a feature included in Microsoft's Windows 2000 server that allows network administrators to install the Windows 2000 Professional operating system and its upgrades to any number of client computers at one time from a centralized location.
Remote Installation Service (RIS) - Remote Installation Service (RIS) is a feature included in Microsoft's Windows 2000 server that allows network administrators to install the Windows 2000 Professional operating system and its upgrades to any number of client computers at one time from a centralized location.
Remote Job Entry - Remote Job Entry (RJE) is a facility that allows remote computer users to submit a job (the running of a specific program or group of programs) to a centrally-located IBM mainframe computer.
Remote Job Entry (RJE) - Remote Job Entry (RJE) is a facility that allows remote computer users to submit a job (the running of a specific program or group of programs) to a centrally-located IBM mainframe computer.
remote keyless entry (RKE) - Remote keyless entry (RKE) is an electronic access system that can be controlled from a distance.
remote login - Rlogin (remote login) is a UNIX command that allows an authorized user to login to other UNIX machines (hosts) on a network and to interact as if the user were physically at the host computer.
Remote Method Invocation - RMI (Remote Method Invocation) is a way that a programmer, using the Java programming language and development environment, can write object-oriented programming in which objects on different computers can interact in a distributed network.
Remote Method Invocation (RMI) - RMI (Remote Method Invocation) is a way that a programmer, using the Java programming language and development environment, can write object-oriented programming in which objects on different computers can interact in a distributed network.
Remote Network Access Application - RNAAPP (Remote Network Access Application) is one of those occasionally visible yet mysterious little programs that come with the Microsoft Windows 95/98 operating system.
Remote Network Access Application (RNAAPP) - RNAAPP (Remote Network Access Application) is one of those occasionally visible yet mysterious little programs that come with the Microsoft Windows 95/98 operating system.
Remote Network Monitoring - RMON (Remote Network Monitoring) provides standard information that a network administrator can use to monitor, analyze, and troubleshoot a group of distributed local area networks (LANs) and interconnecting T-1/E-1 and T-2/E-3 lines from a central site.
remote office/branch office (ROBO) - A ROBO is a smaller office than the company headquarters and located in another town, state or country.
remote patient monitoring - Remote patient monitoring (RPM) is a subcategory of homecare telehealth that allows patients to use mobile medical devices or technology to gather patient-generated health data (PGHD) and send it to healthcare professionals.
remote patient monitoring (RPM) - Remote patient monitoring (RPM) is a subcategory of homecare telehealth that allows patients to use mobile medical devices or technology to gather patient-generated health data (PGHD) and send it to healthcare professionals.
remote printing - Remote printing is a function in which a computer is used with a distant printer.
Remote Procedure Call - Remote Procedure Call (RPC) is a protocol that one program can use to request a service from a program located in another computer on a network without having to understand the network's details.
Remote Procedure Call (RPC) - Remote Procedure Call (RPC) is a protocol that one program can use to request a service from a program located in another computer on a network without having to understand the network's details.
Remote Python Call (RPyC) - A remote python call (RPyC) is a type of remote procedure call that allows an administrator to use the universality of Python programming language to manage a remote object as if it were local.
remote replication - Remote replication is the process of copying production data to a device at a remote location for data protection or disaster recovery purposes.
remote sensing - Remote sensing is the use of various technologies to make observations and measurements at a target that is usually at a distance or scale beyond those observable to the naked eye.
remote server management - Remote server management is a market segment that includes products and services that enable IT professionals to monitor and control data centers from offsite.
remote storage replication - A storage replication service is a managed service in which stored or archived data is duplicated in real time over a storage area network (SAN).
remote terminal unit (RTU) - A remote terminal unit (RTU) is a microprocessor-based electronic device used in industrial control systems (ICS) to connect various hardware to distributed control systems (DCS) or supervisory control and data acquisition (SCADA).
remote wake-up - Remote wakeup (RWU) is a general term for the powering-up of (turning on) a computer over a network.
remote wakeup - Remote wakeup (RWU) is a general term for the powering-up of (turning on) a computer over a network.
remote wakeup (RWU) - Remote wakeup (RWU) is a general term for the powering-up of (turning on) a computer over a network.
remote wipe - Remote wipe is a security feature that allows a network administrator or device owner to send a command that deletes data to a computing device.
remote-control software - Remote-control software is programming in a central or server computer that is used to control other computers (or their users) at a distance, either under the control of an administrator or at the request of the user.
RemoteFX - RemoteFX is a set of protocols for Microsoft's Remote Desktop Protocol (RDP) that are used to remotely deliver Windows virtual desktops over a local area network (LAN).
Remoting (PowerShell Remoting) - PowerShell Remoting is a feature in PowerShell that lets admins run commands on remote systems.
removable media - Removable media is any type of storage device that can be removed from a computer while the system is running.
render - To render (a verb, pronounced REHN-dir, from the medieval French rendre meaning "to give back or yield") has a number of usages along the lines of forming something out of something else originally given.
rendering - In 3-D graphic design, rendering is the process of add shading, color and lamination to a 2-D or 3-D wireframe in order to create life-like images on a screen.
rendundant array of independent disks - RAID (redundant array of independent disks) is a way of storing the same data in different places on multiple hard disks or solid-state drives to protect data in the case of a drive failure.
renewable energy - Renewable energy is any energy source that is naturally replenished, like that derived from solar, wind, geothermal or hydroelectric action.
reorganization (reorg) - Reorganization, in a business context, is an overhaul of a company's internal structure.
reparse point - A reparse point is an object in a file system with attributes that activate extended functionality.
repeat unique user - In Web marketing, a unique user is, for a specified period of time such as a day or month, an individual that has visited a Web site or received specific content, such as ads, e-mail, or newsletters.
repeatable process - A repeatable process is a set of actions that allow for a more efficient use of limited resources and reduce unwanted variation during the development and implementation of various projects.
repeater - In digital communication systems, a repeater is a device that receives a digital signal on an electromagnetic or optical transmission medium and regenerates the signal along the next leg of the medium.
repetitive manufacturing - Repetitive manufacturing (REM) is the means of production planning and control used to produce goods and materials in a repetitive manner.
replenishment - Replenishment refers to the movement of inventory from upstream -- or reserve -- product storage locations to downstream -- or primary – storage, picking and shipment locations.
replicate - Replication (pronounced rehp-lih-KA-shun) is the process of making a replica (a copy) of something.
replication - Replication (pronounced rehp-lih-KA-shun) is the process of making a replica (a copy) of something.
replicator - A replicator is an object or organism that can make copies of itself.
Report on Compliance - A Report on Compliance (ROC) is a form that must be completed by all Level 1 Visa merchants undergoing a PCI DSS audit.
Report on Compliance (ROC) - A Report on Compliance (ROC) is a form that must be completed by all Level 1 Visa merchants undergoing a PCI DSS audit.
Report Program Generator - RPG (Report Program Generator) is a programming language that originated as a report-building program used in DEC and IBM minicomputer operating systems and evolved into a fully procedural programming language.
Report Program Generator (RPG) - RPG (Report Program Generator) is a programming language that originated as a report-building program used in DEC and IBM minicomputer operating systems and evolved into a fully procedural programming language.
repository - In information technology, a repository (pronounced ree-PAHZ-ih-tor-i) is a central place in which an aggregation of data is kept and maintained in an organized way, usually in computer storage.
representational state transfer - REST (REpresentational State Transfer) is an architectural style for developing web services.
reprographics - Reprographics is a blanket term encompassing multiple methods of reproducing content, such as scanning, photography, xerography and digital printing.
reputation management - Reputation management is the practice of attempting to shape public perception of a person or organization by influencing online information about that entity.
reputation risk - Reputation risk is the threat to the profitability or sustainability of a business or other entity that is caused by unfavorable public perception of the organization or its products or services.
Request for Comments - RFC is also an abbreviation for Remote Function Call.
Request for Comments (RFC) - RFC is also an abbreviation for Remote Function Call.
Request for Offer (RFO) - A Request for Offer (RFO) is an open and competitive purchasing process whereby an organization requests the submission of offers in response to specifications and/or a scope of services.
request for proposal - A request for proposal (RFP) is a document that an organization, often a government agency or large enterprise, posts to elicit a response -- a formal bid -- from potential vendors for a desired IT solution.
request for proposal (RFP) - A request for proposal (RFP) is a document that an organization, often a government agency or large enterprise, posts to elicit a response -- a formal bid -- from potential vendors for a desired IT solution.
request for quotation - A request for quotation (RFQ) is a document that an organization submits to one or more potential suppliers eliciting quotations for a product or service.
requirements analysis - Requirements analysis, also called requirements engineering, is the process of determining user expectations for a new or modified product.
requirements analysis (requirements engineering) - Requirements analysis, also called requirements engineering, is the process of determining user expectations for a new or modified product.
requirements creep - Feature creep (sometimes known as requirements creep or scope creep) is a tendency for product or project requirements to increase during development beyond those originally foreseen, leading to features that weren't originally planned and resulting risk to product quality or schedule.
requirements engineering - Requirements analysis, also called requirements engineering, is the process of determining user expectations for a new or modified product.
requirements stability index - A requirement stability index (RSI) is a metric used to organize, control, and track changes to the originally specified requirements for a new system project or product.
requirements stability index (RSI) - A requirement stability index (RSI) is a metric used to organize, control, and track changes to the originally specified requirements for a new system project or product.
requisition - A requisition, in procurement, is a request for goods or services made by an employee to the person or department in a company that is responsible for purchasing.
Rescator - Rescator is the name of an underground online forum which allegedly sold credit card data stolen from customers who shopped at the United States discount retail chain, Target.
rescoring - Rescoring is an Agile software development process in which the development team revisits a pre-defined list of user stories to review story point scores and adjust them up or down based on what the team has learned in previous development iterations.
research and development (R&D) - Research and development (R&D) is the initial, exploratory stage of product and service development.
research starting places - Quick lookups for several kinds of information.
Reseau Numerique a Integration de Services - RNIS (Reseau Numerique a Integration de Services) is the European name for Integrated Services Digital Network (ISDN).
reseller - In information technology, a reseller is a company that typically purchases IT products or services from a product manufacturer, distributor or service provider and then markets them to customers.
reseller hosting - Reseller hosting is the provision of Web hosting services to companies that in turn act as Web hosts for other companies, typically providing Web site design and management services as well as acting as host for the site and serving its pages to users.
Reserve Bank of India (RBI) - The Reserve Bank of India (RBI) is the central banking authority of the country and dictates its monetary policy.
reshoring - Reshoring is the practice of bringing outsourced personnel and services back to the location from which they were originally offshored.
residential construction software - Home building software, also known as residential construction software, is a collection of programs, processes and information that lets residential construction contractors manage the construction process from home design and remodeling, to cost estimates and accounting, to project management and project completion.
residual risk - Residual risk is a threat that remains after an organization has implemented security controls to comply with legal requirements.
Resilient File System - Resilient File System (ReFS) is a file system developed by Microsoft for use on the Windows operating system (OS) that's designed to overcome some of the limitations in the New Technology File System (NTFS).
Resilient File System (ReFS) - Resilient File System (ReFS) is a file system developed by Microsoft for use on the Windows operating system (OS) that's designed to overcome some of the limitations in the New Technology File System (NTFS).
Resilient Packet Ring - Resilient Packet Ring (RPR) is a network topology being developed as a new standard for fiber optic rings.
resistance - Resistance is the opposition that a substance offers to the flow of electric current; the term contrasts with conductance, which is a measure of the ease with which current flows through a substance.
resistive RAM - RRAM or ReRAM (resistive random access memory) is a form of nonvolatile storage that operates by changing the resistance of a specially formulated solid dielectric material.
resistor - A resistor is an electrical component that limits or regulates the flow of electrical current in an electronic circuit.
resolution - In computers, resolution is the number of pixels (individual points of color) contained on a display monitor, expressed in terms of the number of pixels on the horizontal axis and the number on the vertical axis.
resonance charging - Resonance charging is a wireless charging method for items that require large amounts of power, such as an electric car, robot, vacuum cleaner or laptop computer.
Resource Access Control Facility - RACF (Resource Access Control Facility) is the IBM security management product for its mainframe (large server) operating system, OS/390 (MVS) as well as for its VM operating system.
Resource Access Control Facility (RACF) - RACF (Resource Access Control Facility) is the IBM security management product for its mainframe (large server) operating system, OS/390 (MVS) as well as for its VM operating system.
resource allocation - Resource allocation is the process of assigning and managing assets in a manner that supports an organization's strategic goals.
resource contention - In computing, 'resource contention' refers to a conflict over a shared resource between several components.
Resource Description Framework - The Resource Description Framework (RDF) is a general framework for how to describe any Internet resource such as a Web site and its content.
Resource Description Framework (RDF) - The Resource Description Framework (RDF) is a general framework for how to describe any Internet resource such as a Web site and its content.
Resource Reservation Protocol - RSVP (Resource Reservation Protocol) is a set of communication rules that allows channels or paths on the Internet to be reserved for the multicast (one source to many receivers) transmission of video and other high-bandwidth messages.
resource-oriented architecture (ROA) - A resource-oriented architecture (ROA) is the structural design supporting the internetworking of resources.
respawning cookie - A respawning cookie is a standard HTTP cookie backed up by data stored in additional files that are used to rebuild the original cookie when the user visits the originating site again.
Respect for People principle - Continuous Improvement (CI) and Respect for People are the two foundational principles of the Toyota Way, the company's business management guide.
response time - According to the IBM Dictionary of Computing (which cites International Organization for Standardization Information Technology Vocabulary as the source), response time is: The elapsed time between the end of an inquiry or demand on a computer system and the beginning of a response; for example, the length of the time between an indication of the end of an inquiry and the display of the first character of the response at a user terminal.
responsibility - In an Oracle environment, a responsibility is a defined user right, similar to the word privilege in some other settings.
responsible AI - Responsible AI is a governance framework that documents how a specific organization is addressing the challenges around artificial intelligence (AI) from both an ethical and legal point of view.
Responsible AI: Executive QnA - One of the most important steps in implementing Responsible AI is to become deeply sensitive as to how an organization’s deep learning algorithms will ultimately impact real people downstream.
responsive design - Responsive design is an approach to web page creation that makes use of flexible layouts, flexible images and cascading style sheet media queries.
REST - REST (REpresentational State Transfer) is an architectural style for developing web services.
REST (REpresentational State Transfer) - REST (REpresentational State Transfer) is an architectural style for developing web services.
REST API (RESTful API) - A RESTful API is an architectural style for an application program interface (API) that uses HTTP requests to GET, PUT, POST and DELETE data.
restore point - A restore point is a saved "snapshot" of a computer's data at a specific time.
restricted API - A restricted API is an application program interface whose access, or use, is intentionally limited by web site developers for security purposes or business reasons.
restricted Boltzmann machine (RBM) - A restricted Boltzmann machine (RBM) is a type of artificial neural network (ANN) for learning probability distributions.
Restriction of Hazardous Substances Directive - The Restriction of Hazardous Substances (RoHS) Directive is a set of criteria formulated by the European Union (EU) to regulate the use of toxic materials in electrical and electronic devices, systems, and toys.
Restriction of Hazardous Substances Directive (RoHS Directive) - The Restriction of Hazardous Substances (RoHS) Directive is a set of criteria formulated by the European Union (EU) to regulate the use of toxic materials in electrical and electronic devices, systems, and toys.
Resultant Set of Policy - RSoP (Resultant Set of Policy) is a report of all Group Policy settings within Active Directory that shows how those settings can affect a network.
Results Only Work Environment - A Results-Only Work Environment (ROWE) is one in which the most important criteria for evaluating employee performance is the completion of satisfactory work on time.
Results-Only Work Environment - A Results-Only Work Environment (ROWE) is one in which the most important criteria for evaluating employee performance is the completion of satisfactory work on time.
Results-Only Work Environment (ROWE) - A Results-Only Work Environment (ROWE) is one in which the most important criteria for evaluating employee performance is the completion of satisfactory work on time.
retail apocalypse - Retail apocalypse is a controversial term used by the media to describe how a shift in consumer spending patterns might be impacting the traditional brick-and-mortar retail store business model.
retail vs. wholesale - Retail is the sale of merchandise from a specific point (such as malls, markets and department stores) in small quantities directly to the consumer.
retargeting - Retargeting is a type of online advertising whereby companies focus on particular audience members for promotions based on users' prior Internet search history or site visits.
retargeting (remarketing) - Retargeting, also known as remarketing, is advertising that features specific products or services and targets an individual who has viewed them online.
retina scan - Retina scanning is a biometric verification technology that uses an image of an individual’s retinal blood vessel pattern as a unique identifying trait for access to secure installations.
retractable e-mail - Self-destructing email is electronic mail that vanishes or becomes unreadable after a certain length of time or upon the request of the sender.
return merchandise authorization - An RMA (return merchandise authorization) is a numbered authorization provided by a mail-order merchant to permit the return of a product.
return merchandise authorization (RMA) - An RMA (return merchandise authorization) is a numbered authorization provided by a mail-order merchant to permit the return of a product.
return on equity (ROE) - Return on equity (ROE) is a measure of a company’s financial performance that shows the relationship between a company’s profit and the investor’s return.
return on investment - For a given use of money in an enterprise, the ROI (return on investment) is how much profit or cost saving is realized as a result.
return on marketing investment - Return on marketing investment (ROMI) is a metric used to measure the overall effectiveness of a marketing campaign to help marketers make better decisions about allocating future investments.
return on marketing investment (ROMI) - Return on marketing investment (ROMI) is a metric used to measure the overall effectiveness of a marketing campaign to help marketers make better decisions about allocating future investments.
return to zero - RZ (return-to-zero) refers to a form of digital data transmission in which the binary low and high states, represented by numerals 0 and 1, are transmitted by voltage pulses having certain characteristics.
return-to-zero - RZ (return-to-zero) refers to a form of digital data transmission in which the binary low and high states, represented by numerals 0 and 1, are transmitted by voltage pulses having certain characteristics.
retweet - A retweet (RT) is the repetition of another user's update, or tweet, on Twitter.
reuse-oriented development - The reuse-oriented model, also called reuse-oriented development (ROD), is a method of software development in which a program is refined by producing a sequence of prototypes called models, each of which is automatically derived from the preceding one according to a sequence of defined rules.
reuse-oriented model - The reuse-oriented model, also called reuse-oriented development (ROD), is a method of software development in which a program is refined by producing a sequence of prototypes called models, each of which is automatically derived from the preceding one according to a sequence of defined rules.
reuse-oriented model or reuse-oriented development (ROD) - The reuse-oriented model, also called reuse-oriented development (ROD), is a method of software development in which a program is refined by producing a sequence of prototypes called models, each of which is automatically derived from the preceding one according to a sequence of defined rules.
revenue attribution - Revenue attribution is the process of matching customer sales to specific advertisements in order to understand where revenue is coming from and optimize how advertising budgets are spent in the future.
revenue cycle management (RCM) - Revenue cycle management (RCM) is the financial process, utilizing medical billing software, that healthcare facilities use to track patient care episodes from registration and appointment scheduling to the final payment of a balance.
revenue model - A revenue model is a component of a company’s business planning that describes the way it intends to make money.
revenue operations (RevOps) - Revenue operations (RevOps) is the strategic integration of sales, marketing and service departments to provide a better end-to-end view to administration and management, while leaving day-to-day processes within the departments.
revenue recognition - Revenue recognition is a tenet of corporate financial management that defines when a company officially accounts for revenue.
reverb - Reverb (short for reverberation) is the acoustic environment that surrounds a sound.
reverb (reverberation) - Reverb (short for reverberation) is the acoustic environment that surrounds a sound.
reverberation - Reverb (short for reverberation) is the acoustic environment that surrounds a sound.
Reverse Address Resolution Protocol - RARP (Reverse Address Resolution Protocol) is a protocol by which a physical machine in a local area network can request to learn its IP address from a gateway server's Address Resolution Protocol (ARP) table or cache.
Reverse Address Resolution Protocol (RARP) - RARP (Reverse Address Resolution Protocol) is a protocol by which a physical machine in a local area network can request to learn its IP address from a gateway server's Address Resolution Protocol (ARP) table or cache.
reverse brute-force attack - A reverse brute-force attack is a type of brute-force attack in which an attacker uses a common password against multiple usernames in an attempt to gain access to a network.
reverse DNS - Reverse DNS (rDNS) is a method of resolving an IP address into a domain name, just as the domain name system (DNS) resolves domain names into associated IP addresses.
reverse electrovibration (virtual touch) - Reverse electrovibration, also known as virtual touch, is an augmented reality (AR) technology that allows end users to perceive the textures and contours of an object from a computer screen.
reverse engineering - Reverse engineering is taking apart an object to see how it works in order to duplicate or enhance the object.
reverse image search - Reverse image search is a technology that takes an image file as a search engine input query and returns results related to the image.
reverse logistics - Reverse logistics is the set of activities that is conducted after the sale of a product, such as servicing, refurbishment and recycling, for the purpose of recapturing value or proper disposal.
reverse mentoring - Reverse mentoring is a management practice in which a senior employee seeks to gain business insights from a less experienced, often younger employee.
reverse proxy server - A reverse proxy server is a proxy server that relays connection requests for inbound network traffic.
reverse Telnet - Reverse Telnet (sometimes called direct Telnet) is the initiation of a Telnet session from a computer system to one of its remote users.
reverse Telnet (direct Telnet) - Reverse Telnet (sometimes called direct Telnet) is the initiation of a Telnet session from a computer system to one of its remote users.
rewritable DVD - Recordable DVD (sometimes called writable DVD) is a DVD technology that allows a PC user to write data one or more times to a DVD with the PC's DVD drive.
rewriteable CD - CD-RW (for compact disc, rewriteable) is a compact disc (CD) format that allows repeated recording on a disc.
Rexx - Rexx is an interpreted script language developed by IBM originally for use by personal users of large operating systems.
RF - Radio frequency (RF) is a measurement representing the oscillation rate of electromagnetic radiation spectrum, or electromagnetic radio waves, from frequencies ranging from 300 GHz to as low as 9 kHz.
RF wireless charging (RF energy harvesting) - RF wireless charging is a type of uncoupled wireless charging in which an antenna embedded in an electronic device can pick up low level radio frequency waves from external sources and convert the waves’ energy to direct current (DC) voltage.
RF-powered computing - RF-powered computing is the use of radio frequency (RF) signals to enable the operation and communication of low-power devices, typically for machine-to-machine (M2M) networking.
RFC - RFC is also an abbreviation for Remote Function Call.
RFC - RFC is also an abbreviation for Request for Comments.
RFC 1918 - Request for Comment 1918 (RFC 1918), “Address Allocation for Private Internets,” is the Internet Engineering Task Force (IETF) memorandum on methods of assigning of private IP addresses on TCP/IP networks.
RFI (request for information) - An RFI (request for information) is a formal process for gathering information from potential suppliers of a good or service.
RFID - RFID (radio frequency identification) is a form of wireless communication that incorporates the use of electromagnetic or electrostatic coupling in the radio frequency portion of the electromagnetic spectrum to uniquely identify an object, animal or person.
RFID (radio frequency identification) - RFID (radio frequency identification) is a form of wireless communication that incorporates the use of electromagnetic or electrostatic coupling in the radio frequency portion of the electromagnetic spectrum to uniquely identify an object, animal or person.
RFID hacking - An RFID (radio-frequency identification) virus is malicious code inserted into an RFID tag to alter or corrupt data in an RFID system.
RFID skimming - RFID skimming is the wireless interception of information from RFID chip-based debit, credit and ID cards and other documents, such as passports.
RFID tagging - RFID tagging uses small radio frequency identification devices to track and identify objects.
RFID virus - An RFID (radio-frequency identification) virus is malicious code inserted into an RFID tag to alter or corrupt data in an RFID system.
RFM - RFM analysis is a marketing technique used to quantitatively rank and group customers based on the recency, frequency and monetary total of their recent transactions to identify the best customers and perform targeted marketing campaigns.
RFM analysis - RFM analysis is a marketing technique used to quantitatively rank and group customers based on the recency, frequency and monetary total of their recent transactions to identify the best customers and perform targeted marketing campaigns.
RFM analysis (recency, frequency, monetary) - RFM analysis is a marketing technique used to quantitatively rank and group customers based on the recency, frequency and monetary total of their recent transactions to identify the best customers and perform targeted marketing campaigns.
RFP - A request for proposal (RFP) is a document that an organization, often a government agency or large enterprise, posts to elicit a response -- a formal bid -- from potential vendors for a desired IT solution.
RFQ - A request for quotation (RFQ) is a document that an organization submits to one or more potential suppliers eliciting quotations for a product or service.
RFR - The Red Flags Rule (RFR) is a set of United States federal regulations that require certain businesses and organizations to develop and implement documented plans to protect consumers from identity theft.
RFx - RFx (request for x) encompasses the entire formal request process and can include any of the following: request for bid (RFB), request for information (RFI), request for proposal (RFP), request for quotation (RFQ) and request for tender (RFT).
RGB - RGB (red, green, and blue) refers to a system for representing the colors to be used on a computer display.
RGB (red, green, and blue) - RGB (red, green, and blue) refers to a system for representing the colors to be used on a computer display.
RHCVA (Red Hat Certified Virtualization Administrator) - The Red Hat Certified Virtualization Administrator (RHCVA) is a certification exam from Red Hat, Inc.
RHEL - Red Hat Enterprise Linux (RHEL) is a distribution of the Linux operating system developed for the business market.
RHIA - An RHIA, or registered health information administrator, is a certified professional who oversees the creation and use of patient health information, including analyzing that data.
RHIA (Registered Health Information Administrator) - An RHIA, or registered health information administrator, is a certified professional who oversees the creation and use of patient health information, including analyzing that data.
RHIO - A Regional Health Information Organization (RHIO) is a group of organizations within a specific area that share healthcare-related information electronically according to accepted healthcare information technology (HIT) standards.
RHIT - A registered health information technician (RHIT) is a certified professional who stores and verifies the accuracy and completeness of electronic health records.
RIA - A rich Internet application (RIA) is a Web application designed to deliver the same features and functions normally associated with deskop applications.
RIAA - The RIAA (Recording Industry Association of America) is an organization that represents the music recording industry's intellectual property rights.
RIAA (Recording Industry Association of America) - The RIAA (Recording Industry Association of America) is an organization that represents the music recording industry's intellectual property rights.
RIBLOE - The Remote Insight Board -- Lights Out Edition (RIBLOE) is a Peripheral Component Interconnect (PCI) card intended for the remote management of Compaq servers.
RIBLOE (Remote Insight Board -- Lights Out Edition) - The Remote Insight Board -- Lights Out Edition (RIBLOE) is a Peripheral Component Interconnect (PCI) card intended for the remote management of Compaq servers.
rich client - A rich client is a networked computer that has some resources installed locally but also depends on other resources distributed over the network.
Rich Client Platform - A Rich Client Platform (RCP) is a specialized computer program intended for the creation of Java applications built on the Eclipse architecture.
Rich Client Platform (RCP) - A Rich Client Platform (RCP) is a specialized computer program intended for the creation of Java applications built on the Eclipse architecture.
Rich Internet Application - A rich Internet application (RIA) is a Web application designed to deliver the same features and functions normally associated with deskop applications.
Rich Internet Application (RIA) - A rich Internet application (RIA) is a Web application designed to deliver the same features and functions normally associated with deskop applications.
rich media - Rich media is an Internet advertising term for a Web page ad that uses advanced technology such as streaming video, downloaded applets (programs) that interact instantly with the user, and ads that change when the user's mouse passes over it.
rich presence technology - Rich presence is an enhanced form of presence awareness in which participants can determine if other users are online and if so, observe to a limited extent what they are doing and how they are doing it.
rich presence technology (RPT) - Rich presence is an enhanced form of presence awareness in which participants can determine if other users are online and if so, observe to a limited extent what they are doing and how they are doing it.
Rich Site Summary - RSS is an XML-based vocabulary that specifies a means of sharing news headlines and other content between Web sites.
Rich Text Format - Rich Text Format (RTF) is a file format that lets you exchange text files between different word processors in different operating systems.
Rich Text Format (RTF) - Rich Text Format (RTF) is a file format that lets you exchange text files between different word processors in different operating systems.
RickRoll - On the Internet, a RickRoll is a prank where a visitor who clicks on a specific link is intentionally misdirected to a video of pop star Rick Astley's hit "Never Gonna Give You Up.
RID - In Windows 2000, the relative identifier (RID) is the part of a security ID (SID) that uniquely identifies an account or group within a domain.
ridge - In the biometric process of fingerscanning, a ridge is a curved line in a finger image.
RIFAN 2 - Reseau Internet de la Force Aeronavale etape 2 (RIFAN 2) is a secure internet developed for military applications.
right of use - In telecommunications, Indefeasible Right of Use (IRU) is the effective long-term lease (temporary ownership) of a portion of the capacity of an international cable.
right to be forgotten - The right to be forgotten is the concept that individuals have the civil right to request that personal information be removed from the Internet.
right to disconnect - Right to disconnect legislation is a body of regulations limiting the time that employers can expect employees to be available for work-related off-hours communications.
right to repair (electronics) - Right to repair is the legal concept that allows consumers to repair the products they buy, or choose their own service providers instead of going through the manufacturer.
rights - In the administration of a multi-user computer system, a privilege is an identified right that a particular user has to a particular system resource, such as a file folder, the use of certain system commands, or an amount of storage.
RightScale Inc. - RightScale is a software as a service (SaaS) provider that offers cloud management and analytics tools for public, private and hybrid clouds.
rightsourcing - Rightsourcing is selecting the best way to procure a service and deciding whether a company is best served by performing a business requirement in-house (insourcing) or contracting it out to a third-part service provider (outsourcing).
Rijndael - Rijndael (pronounced rain-dahl) is the algorithm that has been selected by the U.
RIM - Records information management (RIM) is a corporate area of endeavor involving the administration of all business records through their life cycle.
RIM - The Reference Information Model (RIM) is an information model for health care data developed by Health Level 7 International (HL7).
RIMM - In a computer, a RIMM is a memory module developed by Kingston Technology Corp.
ring - A ring is a network topology or circuit arrangement in which each device is attached along the same signal path to two other devices, forming a path in the shape of a ring.
ring back - Ringback is an intermittent audio tone that a caller in a telephone system hears after dialing a number, when the distant end of the circuit is receiving a ringing signal.
ring network - A ring network is a local area network (LAN) in which the nodes (workstations or other devices) are connected in a closed loop configuration.
ring tone - On mobile phones, a ringtone is a brief audio file played to indicate an incoming call.
ringback - Ringback is an intermittent audio tone that a caller in a telephone system hears after dialing a number, when the distant end of the circuit is receiving a ringing signal.
Ringelmann effect - The Ringelmann effect is a reduction in productivity per individual that tends to occur as the numbers of people involved in a work group increase.
ringing tone - On mobile phones, a ringtone is a brief audio file played to indicate an incoming call.
ringtone - On mobile phones, a ringtone is a brief audio file played to indicate an incoming call.
RIOT operating system - RIOT operating system is an open source operating system specialized for IoT (internet of things) devices.
RIP - RIP is also an abbreviation for Routing Information Protocol.
RIP - Routing Information Protocol (RIP) is a distance vector protocol that uses hop count as its primary metric.
RIPA - RIPA (Regulation of Investigatory Powers Act) is a law enacted in the United Kingdom in 2000 to govern the interception and use of electronic communications.
ripping - Ripping, more formally known as digital extraction, is the process of copying audio or video content from a compact disc, DVD or streaming media onto a computer hard drive.
ripping (digital extraction) - Ripping, more formally known as digital extraction, is the process of copying audio or video content from a compact disc, DVD or streaming media onto a computer hard drive.
Ripple - Ripple is a payment protocol, cryptocurrency creator and high-tech payment firm that uses blockchain technology to help banks conduct fast global financial settlements.
RIR - A Regional Internet Registry (RIR) is a not-for-profit organization that oversees Internet Protocol (IP) address space and the Autonomous System (AS) numbers within a specific geographical region.
RIS - A RIS is the traditional core software system for electronically managing medical images, scheduling and billing in hospital radiology departments and physician practices.
RIS - Remote Installation Service (RIS) is a feature included in Microsoft's Windows 2000 server that allows network administrators to install the Windows 2000 Professional operating system and its upgrades to any number of client computers at one time from a centralized location.
RISC - RISC (reduced instruction set computer) is a microprocessor that is designed to perform a smaller number of types of computer instructions so that it can operate at a higher speed (perform more millions of instructions per second, or MIPS).
RISC (reduced instruction set computer) - RISC (reduced instruction set computer) is a microprocessor that is designed to perform a smaller number of types of computer instructions so that it can operate at a higher speed (perform more millions of instructions per second, or MIPS).
risk analysis - Risk analysis is the process of identifying and analyzing potential issues that could negatively impact key business initiatives or projects.
risk appetite - In business, risk appetite is the level of risk an organization is prepared to accept.
risk assessment - Risk assessment is the identification of hazards that could negatively impact an organization's ability to conduct business.
risk assessment framework - A risk assessment framework (RAF) is a strategy for prioritizing and sharing information about the security risks to an information technology (IT) infrastructure.
risk assessment framework (RAF) - A risk assessment framework (RAF) is a strategy for prioritizing and sharing information about the security risks to an information technology (IT) infrastructure.
risk avoidance - Risk avoidance is the risk assessment technique that entails eliminating hazards, activities and exposures that place an organization's valuable assets at risk.
risk capital - Risk capital is funds invested speculatively in a business, typically a startup.
risk exposure - Risk exposure is a quantified loss potential of business actions, and is usually calculated based on the probability of the incident occurring multiplied by its potential losses.
risk intelligence (RQ) - Risk intelligence (RQ) is a term used to describe predictions made around uncertainties and future threat probabilities.
risk management - Risk management is the process of identifying, assessing and controlling threats to an organization's capital and earnings.
risk management - Enterprise risk management (ERM) is the process of planning, organizing, leading, and controlling the activities of an organization in order to minimize the effects of risk on an organization's capital and earnings.
risk management software - GRC (governance, risk management and compliance) software allows publicly-held companies to integrate and manage IT operations that are subject to regulation.
risk map (risk heat map) - A risk map, also known as a risk heat map, is a data visualization tool for communicating specific risks an organization faces.
risk mitigation - Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a business.
risk profile - A risk profile is a quantitative analysis of the types of threats an organization, asset, project or individual faces.
risk-based authentication (RBA) - Risk-based authentication (RBA) is a method of applying varying levels of stringency to authentication processes based on the likelihood that access to a given system could result in its being compromised.
risk-based security strategy - A risk-based security strategy is one in which an organization identifies specific security precautions that should be taken in an information technology (IT) environment and documents when and where those precautions should be applied.
risk-reward ratio - Risk-reward ratio is a formula used to measure the expected gains of a given investment against the risk of loss.
Rivest Shamir Adleman - The RSA algorithm is the basis of a cryptosystem -- a suite of cryptographic algorithms that are used for specific security services or purposes -- which enables public key encryption and is widely used to secure sensitive data, particularly when it is being sent over an insecure network such as the internet.
Rivest-Shamir-Adleman - The RSA algorithm is the basis of a cryptosystem -- a suite of cryptographic algorithms that are used for specific security services or purposes -- which enables public key encryption and is widely used to secure sensitive data, particularly when it is being sent over an insecure network such as the internet.
RJ - In the U. S.
RJ-11 - In the U. S.
RJ-14 - In the U. S.
RJ-45 - In the U. S.
RJ-XX - In the U. S.
RJE - Remote Job Entry (RJE) is a facility that allows remote computer users to submit a job (the running of a specific program or group of programs) to a centrally-located IBM mainframe computer.
rlogin - Rlogin (remote login) is a UNIX command that allows an authorized user to login to other UNIX machines (hosts) on a network and to interact as if the user were physically at the host computer.
rlogin (remote login) - Rlogin (remote login) is a UNIX command that allows an authorized user to login to other UNIX machines (hosts) on a network and to interact as if the user were physically at the host computer.
RMA - An RMA (return merchandise authorization) is a numbered authorization provided by a mail-order merchant to permit the return of a product.
RMI - RMI (Remote Method Invocation) is a way that a programmer, using the Java programming language and development environment, can write object-oriented programming in which objects on different computers can interact in a distributed network.
RMM software (remote monitoring and management software) - RMM software (remote monitoring and management software) is a type of application that information technology (IT) service providers use to maintain their clients' IT infrastructure and systems.
RMON - RMON (Remote Network Monitoring) provides standard information that a network administrator can use to monitor, analyze, and troubleshoot a group of distributed local area networks (LANs) and interconnecting T-1/E-1 and T-2/E-3 lines from a central site.
RMON (Remote Network Monitoring) - RMON (Remote Network Monitoring) provides standard information that a network administrator can use to monitor, analyze, and troubleshoot a group of distributed local area networks (LANs) and interconnecting T-1/E-1 and T-2/E-3 lines from a central site.
rms - In a direct current (DC) circuit, voltage or current is simple to define, but in an alternating current (AC) circuit, the definition is more complicated, and can be done in several ways.
RNAAPP - RNAAPP (Remote Network Access Application) is one of those occasionally visible yet mysterious little programs that come with the Microsoft Windows 95/98 operating system.
Rnext - Rnext was the unofficial name given to a then forthcoming release of IBM's Notes and Domino product set.
RNIS - RNIS (Reseau Numerique a Integration de Services) is the European name for Integrated Services Digital Network (ISDN).
ROADM - An ROADM (reconfigurable optical add-drop multiplexer) is a device that can add, block, pass or redirect modulated infrared (IR) and visible light beams of various wavelengths in a fiber optic network.
ROADM (reconfigurable optical add-drop multiplexer) - An ROADM (reconfigurable optical add-drop multiplexer) is a device that can add, block, pass or redirect modulated infrared (IR) and visible light beams of various wavelengths in a fiber optic network.
roam - Roaming service is the ability to get access to the Internet when away from home at the price of a local call or at a charge considerably less than the regular long-distance charges.
roaming - Roaming service is the ability to get access to the Internet when away from home at the price of a local call or at a charge considerably less than the regular long-distance charges.
roaming service - Roaming service is the ability to get access to the Internet when away from home at the price of a local call or at a charge considerably less than the regular long-distance charges.
Robert Metcalfe - Robert 'Bob' Melancton Metcalfe, born April 7, 1946, is an American engineer, entrepreneur, professor, writer and venture capitalist.
Robert Morris worm - The Robert Morris worm is widely acknowledged as the first computer worm to be distributed across the Internet and the first computer virus to receive mainstream media attention.
robo-advisor - A robo-advisor is an artificial intelligence (AI) driven virtual financial advisor.
robocall - A robocall is a telephone call initiated by an autodialer to deliver a prerecorded message.
roboethics (robot ethics) - Roboethics (robot ethics) is the area of study concerned with what rules should be created for robots to ensure their ethical behavior and how to design ethical robots.
robojournalism - Robojournalism is the use of software programs to generate articles, reports and other types of content.
robot - A robot is a machine designed to execute one or more tasks automatically with speed and precision.
robot - A bot (short for 'robot' and also called an internet bot) is a computer program that operates as an agent to either simulate a human activity or for a user or another program.
robot - A robot is a machine designed to execute one or more tasks automatically with speed and precision.
robot blimp - A Stratellite is a rigid framed airship that hovers in a fixed position in the lower stratosphere and carries one or more repeaters to create wireless communication networks.
robot economy - The robot economy is a scenario in which most of the labor required to sustain human life is automated.
Robot Ethics Charter - The Robot Ethics Charter is a proposed set of rules intended to govern the interaction between humans and robot s.
Robot Land - Robot Land is a proposed city for robotics research, development, testing and production in South Korea.
robot tax - Robot tax is a proposition that employers who replace employees with automated workers be required to pay a tax and the funds allocated to assist the displaced workforce.
robotic dirigible - A Stratellite is a rigid framed airship that hovers in a fixed position in the lower stratosphere and carries one or more repeaters to create wireless communication networks.
robotic personality - Robotic personality is an advanced aspect of artificial intelligence (AI) in which smart machines display idiosyncratic human behavior.
robotic process automation (RPA) - Robotic process automation (RPA) is a technology that mimics the way humans interact with software to perform high-volume, repeatable tasks.
robotic surgery (robot-assisted surgery) - Robotic surgery is the use of computer technologies working in conjunction with robot systems to perform medical procedures.
robotic vacuum - Roomba is the name of a robotic vacuum produced by iRobot Corporation of Burlington, Mass.
robotics - Robotics is a branch of engineering that involves the conception, design, manufacture, and operation of robots.
robotics quotient - Robotics quotient (RQ) is a way of scoring humans’ ability to work effectively with robots, just as intelligence quotient (IQ) tests provide a score that helps gauge human cognitive abilities.
robots.txt - Robots.txt is a text file used on websites to provide instructions to webcrawlers or “robots” that index pages for search engines.
Robson - Robson is a mass storage system similar to a hybrid hard drive (HHD).
robust - Robust (pronounced RO-buhst) is an adjective commonly applied in marketing literature to information technology products in several ways.
ROC - A Report on Compliance (ROC) is a form that must be completed by all Level 1 Visa merchants undergoing a PCI DSS audit.
RoC (restart on crash) - RoC (restart on crash) is a functionality built into Windows that automatically restarts an operating system or application when it hangs, freezes or crashes.
Rock Phish - Rock Phish is both a phishing toolkit and the entity that publishes the kit, either a hacker, or, more likely, a sophisticated group of hackers.
rocker switch - A rocker switch is an on/off switch that rocks (rather than trips) when pressed, which means one side of the switch is raised while the other side is depressed much like a rocking horse rocks back and forth.
Rocket eBook - Rocket eBook is a portable reading device about the size of a paperback book that promises to be the first usable, mass-marketed "electronic book.
ROD - The reuse-oriented model, also called reuse-oriented development (ROD), is a method of software development in which a program is refined by producing a sequence of prototypes called models, each of which is automatically derived from the preceding one according to a sequence of defined rules.
RODC (read-only domain controller) - A read-only domain controller (RODC) is a domain controller that hosts an Active Directory database's read-only partitions.
rogue - In general, a rogue is someone who strays from the accepted path, is mischievous, or is a cheat.
rogue employee - A rogue employee is a worker who undermines the organization that employs him by failing to comply with its business rules and policies.
rogue IT - Rogue IT is the use of unsanctioned information technology resources within an organization.
RoHS - The Restriction of Hazardous Substances (RoHS) Directive is a set of criteria formulated by the European Union (EU) to regulate the use of toxic materials in electrical and electronic devices, systems, and toys.
RoHS Directive - The Restriction of Hazardous Substances (RoHS) Directive is a set of criteria formulated by the European Union (EU) to regulate the use of toxic materials in electrical and electronic devices, systems, and toys.
ROI - For a given use of money in an enterprise, the ROI (return on investment) is how much profit or cost saving is realized as a result.
ROI (return on investment) - For a given use of money in an enterprise, the ROI (return on investment) is how much profit or cost saving is realized as a result.
ROKSO - The Register of Known Spam Operations (ROKSO) is a list of over 500 professional spammers that is maintained by the Spamhaus Project, an organization dedicated to identifying and exposing spam operators.
ROLAP - Relational online analytical processing (ROLAP) is a form of online analytical processing (OLAP) that performs dynamic multidimensional analysis of data stored in a relational database rather than in a multidimensional database (which is usually considered the OLAP standard).
role based access control - Role-based access control (RBAC) is a method of restricting network access based on the roles of individual users within an enterprise.
role mining - Role mining is the process of analyzing user-to-resource mapping data to determine or modify user permissions for role-based access control (RBAC) in an enterprise.
role playing game - A role-playing game (RPG) is a game in which each participant assumes the role of a character, generally in a fantasy or science fiction setting, that can interact within the game's imaginary world.
role sharing - Role sharing occurs when an individual within a VAR or other solution provider's organization assumes multiple roles such as "sales engineer", "field engineer", "account manager" or other roles.
role-based access control - Role-based access control (RBAC) is a method of restricting network access based on the roles of individual users within an enterprise.
role-based access control (RBAC) - Role-based access control (RBAC) is a method of restricting network access based on the roles of individual users within an enterprise.
role-playing game - A role-playing game (RPG) is a game in which each participant assumes the role of a character, generally in a fantasy or science fiction setting, that can interact within the game's imaginary world.
role-playing game (RPG) - A role-playing game (RPG) is a game in which each participant assumes the role of a character, generally in a fantasy or science fiction setting, that can interact within the game's imaginary world.
roll back - A rollback is the undoing of partly completed database changes when a database transaction is determined to have failed.
rollable display - A rollable display is a digital screen technology that can be rolled up like a newspaper.
rollback - A rollback is the undoing of partly completed database changes when a database transaction is determined to have failed.
rolling code - Rolling code, also known as hopping code, is an encryption technique commonly used to provide a fresh code for each use of a passive keyless entry (PKE) system.
rolling deployment - A rolling deployment is the installation of software updates on one server or server subset at a time, rather than updating all servers or server subsets at the same time.
rolling forecast - A rolling forecast is a business projection that adapts for the passage of time.
rollout - A rollout is a staged series of activities that often accumulate meaning as they occur.
rollover - In creating page for a Web site, a rollover (some people call it a "mouseover") is a technique using JavaScript that lets you change a page element (usuallly a graphic image) when the user rolls the mouse over something on the page (like a line of text or a graphic image).
rollover ad - A rollover ad is an online advertisement that appears to be a static image until rollover activates it.
Rollyo - A social search engine is an enhanced version of a search engine that combines traditional algorithm -driven technology with online community filtering to produce highly personalized results.
ROM - Read-only memory, or ROM, is a type of computer storage containing non-volatile, permanent data that, normally, can only be read, not written to.
ROM emulation - ROM emulation is the process of copying data from a ROM (read-only memory) chip to a storage medium such as a hard disk or flash memory.
romance scam - A romance scam is a fraudulent scheme in which a swindler pretends romantic interest in a target, establishes a relationship and then attempts to get money or sensitive information from the target under various false pretenses.
ROMI - Return on marketing investment (ROMI) is a metric used to measure the overall effectiveness of a marketing campaign to help marketers make better decisions about allocating future investments.
room-scale VR (room-scale virtual reality) - Room-scale VR (room-scale virtual reality) is the use of a clear space to allow movement for someone using a VR application such as virtual reality gaming.
Roomba - Roomba is the name of a robotic vacuum produced by iRobot Corporation of Burlington, Mass.
Roomba (robotic vacuum) - Roomba is the name of a robotic vacuum produced by iRobot Corporation of Burlington, Mass.
root cause analysis - Root cause analysis is a way to determine how a problematic event occurred by examining why, how and when the casual factors happened after the fact.
root directory - In a computer file system that is organized as a hierarchy or tree, the root directory is the directory that includes all other directories.
root mean square - In a direct current (DC) circuit, voltage or current is simple to define, but in an alternating current (AC) circuit, the definition is more complicated, and can be done in several ways.
root partition - A root partition is the isolated area in a Microsoft Hyper-V environment where the hypervisor runs.
root server system - On the Internet, the root server system is the way that an authoritative master list of all top-level domain names (such as com, net, org,and individual country codes) is maintained and made available to all routers.
root-mean-square - In a direct current (DC) circuit, voltage or current is simple to define, but in an alternating current (AC) circuit, the definition is more complicated, and can be done in several ways.
root-mean-square (RMS) - In a direct current (DC) circuit, voltage or current is simple to define, but in an alternating current (AC) circuit, the definition is more complicated, and can be done in several ways.
rootkit - A rootkit is a program or, more often, a collection of software tools that gives a threat actor remote access to and control over a computer or other system.
rootkits - A rootkit is a program or, more often, a collection of software tools that gives a threat actor remote access to and control over a computer or other system.
Roots of Trust (RoT) - Roots of Trust (RoT) is a set of functions in the trusted computing module that are always trusted by the computer’s operating system (OS).
RoR - Ruby on Rails is an open-source framework for database-backed web development in Ruby, an object-oriented programming language similar to Perl and Python.
RosettaNet - RosettaNet is an organization set up by leading information technology companies to define and implement a common set of standards for e-business.
ROT (redundant, outdated, trivial information) - ROT (redundant, obsolete or trivial) is digital documentation that an organization continues to retain even though the information that is documented has no business or legal value.
ROT-13 - ROT-13 is the encrypting of a message by exchanging each of the letters on the first half of the alphabet with the corresponding letter in the second half of the alphabet (that is, swapping positions by 13 characters).
rotational acceleration - Angular acceleration, also called rotational acceleration, is a quantitative expression of the change in angular velocity that a spinning object undergoes per unit time.
rotational velocity - Angular velocity, also called rotational velocity, is a quantitative expression of the amount of rotation that a spinning object undergoes per unit time.
ROTFL - This handy fast reference will help you quickly understand hundreds of Text, Twitter and Chat abbreviations and acronyms that are popularly used in text messages and social media.
rotoscoping - For either broadcast video or Internet streaming video, rotoscoping is the rotated projection of a sequence of usually photographed action image frames so that the artist can trace from the frame or create an image to superimpose on it.
round robin - A round robin is an arrangement of choosing all elements in a group equally in some rational order, usually from the top to the bottom of a list and then starting again at the top of the list and so on.
round trip time - Round-trip time (RTT), also called round-trip delay, is the time required for a signal pulse or packet to travel from a specific source to a specific destination and back again.
round-trip delay - Round-trip time (RTT), also called round-trip delay, is the time required for a signal pulse or packet to travel from a specific source to a specific destination and back again.
round-trip time - Round-trip time (RTT), also called round-trip delay, is the time required for a signal pulse or packet to travel from a specific source to a specific destination and back again.
round-trip time (RTT) - Round-trip time (RTT), also called round-trip delay, is the time required for a signal pulse or packet to travel from a specific source to a specific destination and back again.
rounding error - Rounding error is the difference between a rounded-off numerical value and the actual value.
RoundTable - Microsoft RoundTable is a videoconference device designed to simulate in-person meetings.
roundtripping - In information processing, roundtripping is the conversion (or, in some usages, the repeated conversion back and forth) of a document in one format such as Microsoft Word to a document in another format such as WordPerfect or HTML and then back again.
route aggregation - Route aggregation is an alternate term for route summarization, which is a method used to minimize the number of routing tables required in an IP network.
route aggregation - Route summarization, also called route aggregation, is a method of minimizing the number of routing tables in an IP (Internet Protocol) network.
route summarization - Route summarization, also called route aggregation, is a method of minimizing the number of routing tables in an IP (Internet Protocol) network.
route summarization (route aggregation) - Route summarization, also called route aggregation, is a method of minimizing the number of routing tables in an IP (Internet Protocol) network.
router - A router is a physical or virtual appliance that passes information between two or more packet-switched computer networks.
routine - In computer programming, routine and subroutine are general and nearly synonymous terms for any sequence of code that is intended to be called and used repeatedly during the executable of a program.
routing - A router is a physical or virtual appliance that passes information between two or more packet-switched computer networks.
Routing and Special Handling - RASHport, also called RASH (Routing and Special Handling), is a digital communications protocol that allows customers of the NASDAQ (National Association of Securities Dealers Automated Quotations) to conduct business in the options market.
Routing Information Protocol - Routing Information Protocol (RIP) is a distance vector protocol that uses hop count as its primary metric.
Routing Information Protocol (RIP) - Routing Information Protocol (RIP) is a distance vector protocol that uses hop count as its primary metric.
routing table - A routing table is a set of rules, often viewed in table format, that is used to determine where data packets traveling over an Internet Protocol (IP) network will be directed.
roving analysis port - Port mirroring is an approach to monitoring network traffic that involves forwarding a copy of each packet from one network switch port to another.
row - In a database, a row (sometimes called a record) is the set of fields within a table that are relevant to a specific entity.
row address strobe - In computer memory technology, RAS (row address strobe) is a signal sent to a dynamic random access memory (DRAM) that tells it that an associated address is a row address.
ROWE - A Results-Only Work Environment (ROWE) is one in which the most important criteria for evaluating employee performance is the completion of satisfactory work on time.
Rowhammer - Rowhammer is a vulnerability in commodity dynamic random access memory (DRAM) chips that allows an attacker to exploit devices with DRAM memory by repeatedly accessing (hammering) a row of memory until it causes bit flips and transistors in adjacent rows of memory reverse their binary state: ones turn into zeros and vice versa.
RPC - Remote Procedure Call (RPC) is a protocol that one program can use to request a service from a program located in another computer on a network without having to understand the network's details.
RPC over HTTP - RPC over HTTP (Remote Procedure Call over HTTP) is a protocol that allows a client on the Internet to connect securely to a Microsoft Exchange Server without having to log into a virtual private network (VPN) first.
RPG - RPG (Report Program Generator) is a programming language that originated as a report-building program used in DEC and IBM minicomputer operating systems and evolved into a fully procedural programming language.
RPG - A role-playing game (RPG) is a game in which each participant assumes the role of a character, generally in a fantasy or science fiction setting, that can interact within the game's imaginary world.
RPM - RPM Package Manager (also known simply as RPM), originally called the Red-hat Package Manager, is a program for installing, uninstalling, and managing software packages in Linux.
RPM - Remote patient monitoring (RPM) is a subcategory of homecare telehealth that allows patients to use mobile medical devices or technology to gather patient-generated health data (PGHD) and send it to healthcare professionals.
RPM Package Manager - RPM Package Manager (also known simply as RPM), originally called the Red-hat Package Manager, is a program for installing, uninstalling, and managing software packages in Linux.
RPM Package Manager (Red-hat Package Manager) - RPM Package Manager (also known simply as RPM), originally called the Red-hat Package Manager, is a program for installing, uninstalling, and managing software packages in Linux.
RPO - The recovery point objective (RPO) is the age of files that must be recovered from backup storage for normal operations to resume if a computer, system or network goes down as a result of a hardware, program or communications failure.
RPR - Resilient Packet Ring (RPR) is a network topology being developed as a new standard for fiber optic rings.
RPT - Rich presence is an enhanced form of presence awareness in which participants can determine if other users are online and if so, observe to a limited extent what they are doing and how they are doing it.
RRAM - RRAM or ReRAM (resistive random access memory) is a form of nonvolatile storage that operates by changing the resistance of a specially formulated solid dielectric material.
RRAM or ReRAM (resistive RAM) - RRAM or ReRAM (resistive random access memory) is a form of nonvolatile storage that operates by changing the resistance of a specially formulated solid dielectric material.
RS Means - RS Means is a division of Reed Business Information that provides cost information to the construction industry so contractors in the industry can provide accurate estimates and projections for their project costs.
RS-232C - RS-232C is a long-established standard ("C" is the current version) that describes the physical interface and protocol for relatively low-speed serial data communication between computers and related devices.
RSA algorithm - The RSA algorithm is the basis of a cryptosystem -- a suite of cryptographic algorithms that are used for specific security services or purposes -- which enables public key encryption and is widely used to secure sensitive data, particularly when it is being sent over an insecure network such as the internet.
RSA algorithm (Rivest-Shamir-Adleman) - The RSA algorithm is the basis of a cryptosystem -- a suite of cryptographic algorithms that are used for specific security services or purposes -- which enables public key encryption and is widely used to secure sensitive data, particularly when it is being sent over an insecure network such as the internet.
RSA Security - RSA Security is a United States-based organization that creates encryption, network and computer security products.
RSAT (Microsoft Remote Server Administration Tools) - RSAT (Remote Server Administration Tools) is a feature that began in Windows Server 2008 R2 to help admins remotely manage computers running Windows Server.
RSI - A requirement stability index (RSI) is a metric used to organize, control, and track changes to the originally specified requirements for a new system project or product.
RSNA - Radiological Society of North America (RSNA) is a society of radiologists and similar health scientists that seeks to encourage connections between colleagues and provide scientists with a platform for radiology education and research.
RSoP - RSoP (Resultant Set of Policy) is a report of all Group Policy settings within Active Directory that shows how those settings can affect a network.
RSoP (Resultant Set of Policy) - RSoP (Resultant Set of Policy) is a report of all Group Policy settings within Active Directory that shows how those settings can affect a network.
RSS - RSS is an XML-based vocabulary that specifies a means of sharing news headlines and other content between Web sites.
RSS feed - RSS is an XML-based vocabulary that specifies a means of sharing news headlines and other content between Web sites.
RSS reader - An RSS reader, also called a feed reader, is a browser add-on program designed to gather and display RSS feeds according to user-definable parameters.
RSVP - RSVP (Resource Reservation Protocol) is a set of communication rules that allows channels or paths on the Internet to be reserved for the multicast (one source to many receivers) transmission of video and other high-bandwidth messages.
RSVP (Resource Reservation Protocol) - RSVP (Resource Reservation Protocol) is a set of communication rules that allows channels or paths on the Internet to be reserved for the multicast (one source to many receivers) transmission of video and other high-bandwidth messages.
rsync - Rsync is a free software utility for Unix- and Linux-like systems that copies files and directories from one host to another.
RT - A retweet (RT) is the repetition of another user's update, or tweet, on Twitter.
RTA - A real-time application (RTA) is an application program that functions within a time frame that the user senses as immediate or current.
RTA (recovery time actual) - RTA (recovery time actual) is the amount of real-world time it takes for an organization to recover its systems and business processes following an unplanned disruption; that amount of time can differ significantly from the recovery time objective (RTO), although ideally it should be the same or better.
RTC - A real-time clock (RTC) is a battery-powered clock that is included in a microchip in a computer motherboard.
RTC - Real-time communications (RTC) is any mode of telecommunications in which all users can exchange information instantly or with negligible latency.
RTCD - A real-time communications dashboard (RTCD) is an application designed to facilitate efficient, convenient real-time communications (RTC) in a business environment.
RTD - A reconfigurable tactile display (RTD) is a control interface that provides physical touch input, but that can be configured by programming.
RTF - Rich Text Format (RTF) is a file format that lets you exchange text files between different word processors in different operating systems.
RTLS - A real-time location system (RTLS) is one of a number of technologies used to pinpoint the current geographic position and location of a target.
RTO - The recovery time objective (RTO) is the maximum tolerable length of time that a computer, system, network or application can be down after a failure or disaster occurs.
RtOI (real-time operational intelligence) - Real-time operational intelligence (RtOI) is an emerging industrial discipline that allows businesses to intelligently transform vast amounts of operational data into actionable information that is accessible anywhere, anytime and across many devices, including tablets and smartphones.
RTOS - A real-time operating system (RTOS) is an operating system that guarantees a certain capability within a specified time constraint.
RTP - The Real-Time Transport Protocol (RTP) is an Internet protocol standard that specifies a way for programs to manage the real-time transmission of multimedia data over either unicast or multicast network services.
RTSP - Real Time Streaming Protocol (RTSP) is an application-level network communication system that transfers real-time data from multimedia to an endpoint device by communicating directly with the server streaming the data.
RTT - Round-trip time (RTT), also called round-trip delay, is the time required for a signal pulse or packet to travel from a specific source to a specific destination and back again.
rubric - A rubric is a scoring tool used to evaluate and assess a set list of criteria and objectives.
Ruby - Ruby is an open source, interpreted, object-oriented programming language created by Yukihiro Matsumoto, who chose the gemstone's name to suggest "a jewel of a language.
Ruby on Rails - Ruby on Rails is an open-source framework for database-backed web development in Ruby, an object-oriented programming language similar to Perl and Python.
Ruby on Rails (RoR or Rails) - Ruby on Rails is an open-source framework for database-backed web development in Ruby, an object-oriented programming language similar to Perl and Python.
rugged DevOps - Rugged DevOps is an approach to software development that places a priority on ensuring that code is secure at all stages of the software development lifecycle.
rugged IT - Rugged IT is a marketing term for hardware that is designed to operate in extremely harsh environments and conditions.
rule of five (statistics) - The rule of five is a rule of thumb in statistics that estimates the median of a population by choosing a random sample of five from that population.
Rule of Least Power - The Rule of Least Power is the notion that a programmer should use the least powerful programming language required to code for a given requirement.
rule of thumb - A rule of thumb is a principle that is intended to provide general guidance rather than precise direction.
run book - In a computer system or network, a run book is a written set of procedures for the routine and exceptional operation of the system or network by an administrator or operator.
Run commands for XP and Vista - Run commands for XP and Vista.
runbook - In a computer system or network, a run book is a written set of procedures for the routine and exceptional operation of the system or network by an administrator or operator.
runlevel - A runlevel is a Linux operating state that determines which programs can execute when the operating system restarts.
running disparity - Running disparity (RD or rd) is the difference between the number of logic 1 bits and logic 0 bits between the start of a data sequence and a particular instant in time during its transmission.
runt - In networks, a runt is a packet that is too small.
runtime - Runtime is when a program is running (or being executable).
runtime application self-protection (RASP) - Runtime application self-protection (RASP) is security software that monitors application inputs and behavior and takes action to deal with suspicious events automatically or, if necessary, alert an administrator.
runtime system - A runtime system is an engine that translates a given programming language or languages into machine code.
RUP - Rational Unified Process (RUP) is an object-oriented and Web-enabled program development methodology.
RWU - Remote wakeup (RWU) is a general term for the powering-up of (turning on) a computer over a network.
RxNorm - RxNorm is a catalog of the standard names given to clinical drugs and drug delivery devices in the United States to enable interoperability and clear communication between electronic systems, regardless of software and hardware compatibility.
Ryzen (AMD Ryzen) - Ryzen (pronounced RYE zen) is an AMD CPU aimed at the server, desktop, workstation, media center PC and all-in-one markets.
RZ - RZ (return-to-zero) refers to a form of digital data transmission in which the binary low and high states, represented by numerals 0 and 1, are transmitted by voltage pulses having certain characteristics.
RZ (return-to-zero) - RZ (return-to-zero) refers to a form of digital data transmission in which the binary low and high states, represented by numerals 0 and 1, are transmitted by voltage pulses having certain characteristics.
