Browse Definitions :

Computer Science

Definitions about computer science including computing fundamentals vocabulary, protocol and standards terminology, words about microprocessors and terms used in electronics.

Algorithms

Terms related to procedures or formulas for solving a problem by conducting a sequence of specified actions. In computing, algorithms in the form of mathematical instructions play an important part in search, artificial intelligence (AI) and machine learning.

  • recurrent neural networks

    A recurrent neural network (RNN) is a type of artificial neural network commonly used in speech recognition and natural language processing.

  • domain generation algorithm (DGA)

    A domain generation algorithm (DGA) is a program that generates a large list of domain names. DGA provides malware with new domains in order to evade security countermeasures.

  • artificial intelligence

    Artificial intelligence is the simulation of human intelligence processes by machines, especially computer systems. Specific applications of AI include expert systems, natural language processing, speech recognition and machine vision.

View All Algorithms Definitions

Artificial intelligence - machine learning

Terms related to artificial intelligence (AI), including definitions about machine learning and words and phrases about training data, algorithms, natural language processing, neural networks and automation.

  • natural language generation (NLG)

    Natural language generation (NLG) is the use of artificial intelligence (AI) programming to produce written or spoken narratives from a data set.

  • Singularity (the)

    In technology, the singularity describes a hypothetical future where technology growth is out of control and irreversible.

  • recurrent neural networks

    A recurrent neural network (RNN) is a type of artificial neural network commonly used in speech recognition and natural language processing.

View All Artificial intelligence - machine learning Definitions Back to Top

Electronics

Terms related to electronics, including definitions about electrical components and words and phrases about computers, laptops parts, digital cameras, televisions and home appliances.

  • American Wire Gauge (AWG)

    American Wire Gauge (AWG) is the standard way to denote wire size in North America.

  • optoisolator (optical coupler or optocoupler)

    An optoisolator (also known as an optical coupler, photocoupler, optocoupler) is a semiconductor device that transfers an electrical signal between isolated circuits using light.

  • Serial ATA (Serial Advanced Technology Attachment or SATA)

    Serial ATA (Serial Advanced Technology Attachment or SATA) is a command and transport protocol that defines how data is transferred between a computer's motherboard and mass storage devices, such as hard disk drives (HDDs), optical drives and solid-state drives (SSDs).

View All Electronics Definitions Back to Top

Fast references

Fast References and Quick Look-Ups for specific information technology (IT) topics.

  • Text message abbreviations and acronyms

    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. Please bookmark this page and refer back to it as needed.

  • motor vehicle record (MVR)

    A motor vehicle record (MVR) is the documentation of a person’s driving history. The information in an MVR includes personally identifiable information (PII) as well as information about the driver's traffic citations, vehicular crimes, accidents, driving under the influence (DUI) convictions and the number of points on the individual’s driver’s license.

  • United States Department of Energy (DOE)

    United States Department of Energy (DOE) is a federal cabinet agency that is tasked with overseeing the energy economy, energy policies and energy security of the U.S. The agency creates policies for nuclear power, fossil fuel and alternative energy sources.

View All Fast references Definitions Back to Top

IT standards and organizations

Terms related to information technology (IT) standards, including definitions about IT organizations and words and phrases about policies and compliance.

  • American Wire Gauge (AWG)

    American Wire Gauge (AWG) is the standard way to denote wire size in North America.

  • encoding and decoding

    Encoding and decoding are used in many forms of communications, including computing, data communications, programming, digital electronics and human communications.

  • Session Initiation Protocol (SIP)

    Session Initiation Protocol (SIP) is a signaling protocol used for initiating, maintaining, modifying and terminating real-time sessions that involve video, voice, messaging and other communications applications and services between two or more endpoints on IP networks.

View All IT standards and organizations Definitions Back to Top

Learning guides

Guides and tutorials related to specific subjects including security, storage, programming, IT governance, data transmission, lifecycle management and technology used in vertical industries.

View All Learning guides Definitions Back to Top

Mathematics

Terms related to mathematics, including definitions about logic, algorithms and computations and mathematical terms used in computer science and business.

  • Mathematical symbols

    This table contains mathematical symbols and links to definitions of what they represent and how they are used.

  • prime number

    A prime number is a whole number greater than 1 whose only factors are 1 and itself. A factor is a whole numbers that can be divided evenly into another number.

  • correlation coefficient

    A correlation coefficient is a statistical measure of the degree to which changes to the value of one variable predict change to the value of another.

View All Mathematics Definitions Back to Top

Microprocessors

Terms related to microprocessors, including definitions about silicon chips and words and phrases about computer processors.

View All Microprocessors Definitions Back to Top

Nanotechnology

Terms related to nanotechnology, including manufacturing definitions and words and phrases about building machines at a molecular level.

  • Singularity (the)

    In technology, the singularity describes a hypothetical future where technology growth is out of control and irreversible.

  • Fourth Industrial Revolution

    The Fourth Industrial Revolution is the current and developing environment in which disruptive technologies and trends such as the Internet of Things (IoT), robotics, virtual reality (VR) and artificial intelligence (AI) are changing the way modern people live and work.

  • quantum theory

    Quantum theory is the theoretical basis of modern physics that explains the nature and behavior of matter and energy on the atomic and subatomic level.

View All Nanotechnology Definitions Back to Top

Protocols

Terms related to communication protocols, including definitions about TCP, IP, UDP, POP, SMTP, HTTP, XML, W-CDMA and FTP.

  • Stream Control Transmission Protocol (SCTP)

    Stream Control Transmission Protocol (SCTP) is a connection-oriented network protocol for transmitting multiple streams of data simultaneously between two endpoints that have established a connection in a network.

  • SSL (secure sockets layer)

    Secure sockets layer (SSL) is a networking protocol designed for securing connections between web clients and web servers over an insecure network, such as the internet.

  • time-to-live (TTL)

    Time-to-live (TTL) is a value for the period of time that a packet, or data, should exist on a computer or network before being discarded.

View All Protocols Definitions Back to Top

Quick Start Glossaries

These reference glossaries contain terms related to specific subjects including security, storage, programming, IT governance, data transmission, lifecycle management and technology used in vertical industries.

View All Quick Start Glossaries Definitions Back to Top

Robotics

Terms related to robotics, including definitions about consumer or manufacturing robots and words and phrases about stepper motor systems, XY positioning tables, automation and artificial intelligence.

  • Singularity (the)

    In technology, the singularity describes a hypothetical future where technology growth is out of control and irreversible.

  • artificial intelligence

    Artificial intelligence is the simulation of human intelligence processes by machines, especially computer systems. Specific applications of AI include expert systems, natural language processing, speech recognition and machine vision.

  • narrow AI (weak AI)

    Narrow AI is an application of artificial intelligence technologies to enable a high-functioning system that replicates -- and perhaps surpasses -- human intelligence for a dedicated purpose.

View All Robotics Definitions Back to Top

SEO

Definitions related to search engine optimization, including definitions about SEO and words and phrases about bots, spiders, organic traffic and all areas of search engine marketing (SEM).

  • metadata

    Often referred to as data that describes other data, metadata is structured reference data that helps to sort and identify attributes of the information it describes.

  • Google Analytics

    Google Analytics is a free web analytics service that provides statistics and analytical tools for search engine optimization (SEO) and marketing purposes.

  • microdata

    Microdata is a type of specification language that is embedded within HTML content to improve machine readability, annotate elements and analyze web pages.

View All SEO Definitions Back to Top

Video Production

Definitions about producing and editing videos.

  • cinemagraph

    A cinemagraph is an image that combines still photography with active video to create a picture that contains a small moving element while the rest is frozen.

  • videogrammetry

    Videogrammetry is the extraction of an object’s measurements from a video; measurements may be gathered from multiple angles or multiple videos.

  • digital evidence presentation system (DEPS)

    A digital evidence presentation system (DEPS) is a system with an overhead camera and a liquid crystal display (LCD) used in courts to present and record evidence digitally.

View All Video Production Definitions Back to Top
SearchCompliance
  • OPSEC (operations security)

    OPSEC (operations security) is a security and risk management process and strategy that classifies information, then determines ...

  • smart contract

    A smart contract is a decentralized application that executes business logic in response to events.

  • compliance risk

    Compliance risk is an organization's potential exposure to legal penalties, financial forfeiture and material loss, resulting ...

SearchSecurity
SearchHealthIT
SearchDisasterRecovery
  • What is risk mitigation?

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a business.

  • change control

    Change control is a systematic approach to managing all changes made to a product or system.

  • disaster recovery (DR)

    Disaster recovery (DR) is an organization's ability to respond to and recover from an event that affects business operations.

SearchStorage
  • VRAM (video RAM)

    VRAM (video RAM) refers to any type of random access memory (RAM) specifically used to store image data for a computer display.

  • PCIe SSD (PCIe solid-state drive)

    A PCIe SSD (PCIe solid-state drive) is a high-speed expansion card that attaches a computer to its peripherals.

  • virtual memory

    Virtual memory is a memory management technique where secondary memory can be used as if it were a part of the main memory.

Close