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Computer Science

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

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.

  • machine-to-machine (M2M)

    Machine-to-machine, or M2M, is a broad label that can be used to describe any technology that enables networked devices to exchange information and perform actions without the manual assistance of humans.

  • Hadoop

    Hadoop is an open source distributed processing framework that manages data processing and storage for big data applications running in clustered systems.

  • audio content

    Audio content is any type of published material or information that is consumed through listening.

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Computing fundamentals

Terms related to computer fundamentals, including computer hardware definitions and words and phrases about software, operating systems, peripherals and troubleshooting.

  • dynamic and static

    In general, dynamic means energetic, capable of action and/or change, or forceful, while static means stationary or fixed.

  • byte

    In most computer systems, a byte is a unit of data that is eight binary digits long. Bytes are often used to represent a character such as a letter, number or typographic symbol.

  • data

    In computing, data is information that has been translated into a form that is efficient for movement or processing.

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Electronics

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

  • processor (CPU)

    A processor is the logic circuitry that responds to and processes the basic instructions that drive a computer.

  • machine-to-machine (M2M)

    Machine-to-machine, or M2M, is a broad label that can be used to describe any technology that enables networked devices to exchange information and perform actions without the manual assistance of humans.

  • NAND flash memory

    NAND flash memory is a type of nonvolatile storage technology that does not require power to retain data.

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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.

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IT standards and organizations

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

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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.

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Mathematics

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

  • independent variable

    An independent variable is a variable that is manipulated to determine the value of a dependent variable.

  • natural number

    A natural number is a number that occurs commonly and obviously in nature.

  • algorithm

    An algorithm (pronounced AL-go-rith-um) is a procedure or formula for solving a problem, based on conducting a sequence of specified actions.

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Microprocessors

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

  • processor (CPU)

    A processor is the logic circuitry that responds to and processes the basic instructions that drive a computer.

  • cache memory

    Cache memory, also called CPU memory, is high-speed static random access memory (SRAM) that a computer microprocessor can access more quickly than it can access regular random access memory (RAM).

  • smart card

    A smart card is a physical card that has an embedded integrated chip that acts as a security token.

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Nanotechnology

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

  • MEMS (micro-electromechanical systems)

    A MEMS (micro-electromechanical system) is a miniature machine that has both mechanical and electronic components.

  • nanocrystal

    A nanocrystal is a crystalline particle with at least one dimension measuring less than 1000 nanometers (nm), where 1 nm is defined as 1 thousand-millionth of a meter (10-9 m).

  • biotechnology (biotech)

    Biotechnology is the use of biological processes, organisms, or systems to manufacture products intended to improve the quality of human life.

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Podcasts

Podcasts about information technology (IT) topics; includes definitions about producing podcasts.

  • Videocast: What is the difference between UC and UM?

    In the SearchVoIP.com videocast, Whatis.com's Alex Howard discusses the differences between unified messaging and unified communications, the features each option allows users and the development of UM to UC. Whether you are considering UC or have already implemented unified communications, this videocast embedded on the right explains the differences between the technologies and how UC will continue to impact the future of communications.

  • Podcast: What is FFIEC compliance?

    In this WhatIs.com podcast, you'll learn about this attempt to modernize existing banking practices in the context of new online threats like phishing. To learn more about FFIEC compliance, Assistant Site Editor Alex Howard interviewed Patrick Audley, the CTO of risk adaptive software provider Cogneto.

  • Podcast: What is SOA?

    In this podcast you will learn what service-oriented architecture (SOA) is, how it relates to other programming approaches and what standards and tools you need to be aware of before implementing SOA. (Continued...)

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Protocols

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

  • FTP (File Transfer Protocol)

    File Transfer Protocol (FTP) is a client-server standard used to transfer files between computers over the Internet using control and data channels.

  • HTTP (Hypertext Transfer Protocol)

    HTTP (Hypertext Transfer Protocol) is the set of rules for transferring files, such as text, graphic images, sound, video, and other multimedia files, on the World Wide Web.

  • DHCP (Dynamic Host Configuration Protocol)

    DHCP (Dynamic Host Configuration Protocol) is a network management protocol used to dynamically assign an Internet Protocol (IP) address to any device, or node, on a network so they can communicate using IP.

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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.

  • mobile robot (mobile robotics)

    A mobile robot is a machine controlled by software that use sensors and other technology to identify its surroundings and move around its environment.

  • drone (UAV)

    A drone, in technological terms, is an unmanned aircraft. Drones are more formally known as unmanned aerial vehicles (UAVs) or unmanned aircraft systems (UASes).

  • Blue Moon Lander

    Blue Moon Lander is a spacecraft being designed to land on the lunar surface by 2024. The lander is being designed by Blue Origin, a space exploration company created by Amazon founder Jeff Bezos.

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Video Production

Definitions about producing and editing videos.

  • 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.

  • video display unit (VDU)

    A video display unit (VDU) consists of:A computer output device that uses a cathode ray tube or other technology to present visual imagesOne or more input devices, such as a keyboard, a mouse, or both.

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  • cybersecurity

    Cybersecurity is the protection of internet-connected systems, including hardware, software and data, from cyberattacks.

  • asymmetric cryptography (public key cryptography)

    Asymmetric cryptography, also called public key cryptography, uses a pair of numerical keys that are mathematically related to ...

  • digital signature

    A digital signature is a mathematical technique used to validate the authenticity and integrity of a message, software or digital...

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  • business continuity plan (BCP)

    A business continuity plan (BCP) is a document that consists of the critical information an organization needs to continue ...

  • disaster recovery team

    A disaster recovery team is a group of individuals focused on planning, implementing, maintaining, auditing and testing an ...

  • cloud insurance

    Cloud insurance is any type of financial or data protection obtained by a cloud service provider. 

SearchStorage

  • hard disk drive (HDD)

    A computer hard disk drive (HDD) is a non-volatile memory hardware device that controls the positioning, reading and writing of ...

  • byte

    In most computer systems, a byte is a unit of data that is eight binary digits long. Bytes are often used to represent a ...

  • network-attached storage (NAS)

    Network-attached storage (NAS) is dedicated file storage that enables multiple users and heterogeneous client devices to retrieve...

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