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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.

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.

  • Twofish

    Twofish is a symmetric-key block cipher with a block size of 128 bits and variable-length key of size 128, 192 or 256 bits.

  • RSA algorithm (Rivest-Shamir-Adleman)

    The RSA algorithm (Rivest-Shamir-Adleman) 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.

  • Digital Signature Standard (DSS)

    The Digital Signature Standard (DSS) is a digital signature algorithm (DSA) developed by the U.S. National Security Agency (NSA) as a means of authentication for electronic documents.

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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.

  • chatbot

    A chatbot is a software or computer program that simulates the human conversation or "chatter" through text or voice interactions.

  • telepresence robot

    A telepresence robot is a remote-controlled, wheeled device that has wireless internet connectivity.

  • ambient intelligence (AmI)

    Ambient intelligence (AmI) is the element of a pervasive computing environment that enables it to interact with and respond appropriately to the humans in that environment.

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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.

  • resistor

    A resistor is an electrical component that limits or regulates the flow of electrical current in an electronic circuit.

  • ampere

    An ampere is a unit of measure of the rate of electron flow or current in an electrical conductor.

  • impedance

    Impedance, denoted Z, is an expression of the opposition that an electronic component, circuit, or system offers to alternating and/or direct electric current.

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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.

  • Windows Management Instrumentation (WMI)

    Windows Management Instrumentation (WMI) is a set of specifications from Microsoft for consolidating the management of devices and applications in a network from Windows computing systems.

  • cloud audit

    A cloud audit is a periodic examination an organization does to assess and document its cloud vendor's performance.

  • ICANN (Internet Corporation for Assigned Names and Numbers)

    ICANN (Internet Corporation for Assigned Names and Numbers) is the private, non-government, nonprofit corporation with responsibility for IP address space allocation, protocol parameter assignment, domain name system management and root server system management functions.

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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.

  • integer

    An integer (pronounced IN-tuh-jer) is a whole number (not a fractional number) that can be positive, negative, or zero.

  • cryptology

    Cryptology is the mathematics, such as number theory and the application of formulas and algorithms, that underpin cryptography and cryptanalysis.

  • Mathematical symbols

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

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Microprocessors

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

  • semiconductor

    A semiconductor is a substance that has specific electrical properties that enable it to serve as a foundation for computers and other electronic devices.

  • neural net processor

    A neural net processor is a CPU that takes the modeled workings of how a human brain operates onto a single chip.

  • neurosynaptic chip (cognitive chip)

    A neurosynaptic chip, also known as a cognitive chip, is a computer processor that functions more like a biological brain than a typical CPU does.

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Nanotechnology

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

  • superposition

    Superposition is the ability of a quantum system to be in multiple states at the same time until it is measured.

  • robotics

    Robotics is a branch of engineering that involves the conception, design, manufacture and operation of robots.

  • Singularity (the)

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

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Protocols

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

  • chatty protocol

    A chatty protocol is an application or routing protocol requiring a client or server to wait for an acknowledgment before transmitting data again.

  • OLTP (online transaction processing)

    OLTP (online transaction processing) is a class of software programs capable of supporting transaction-oriented applications.

  • downloading

    Downloading is the transmission of a file or data from one computer to another over a network, usually from a larger server to a user device.

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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.

  • chatbot

    A chatbot is a software or computer program that simulates the human conversation or "chatter" through text or voice interactions.

  • telepresence robot

    A telepresence robot is a remote-controlled, wheeled device that has wireless internet connectivity.

  • robot economy

    The robot economy is a scenario in which most of the labor required to sustain human life is automated.

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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).

  • search engine marketing (SEM)

    Search engine marketing (SEM) is an approach to advertising that helps companies' content rank higher in search engine queries.

  • 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.

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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.

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SearchCompliance
  • ISO 31000 Risk Management

    The ISO 31000 Risk Management framework is an international standard that provides businesses with guidelines and principles for ...

  • pure risk

    Pure risk refers to risks that are beyond human control and result in a loss or no loss with no possibility of financial gain.

  • risk reporting

    Risk reporting is a method of identifying risks tied to or potentially impacting an organization's business processes.

SearchSecurity
  • Twofish

    Twofish is a symmetric-key block cipher with a block size of 128 bits and variable-length key of size 128, 192 or 256 bits.

  • walled garden

    On the internet, a walled garden is an environment that controls the user's access to network-based content and services.

  • potentially unwanted program (PUP)

    A potentially unwanted program (PUP) is a program that may be unwanted, despite the possibility that users consented to download ...

SearchHealthIT
SearchDisasterRecovery
  • What is risk mitigation?

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

  • fault-tolerant

    Fault-tolerant technology is a capability of a computer system, electronic system or network to deliver uninterrupted service, ...

  • synchronous replication

    Synchronous replication is the process of copying data over a storage area network, local area network or wide area network so ...

SearchStorage
  • Remote Direct Memory Access (RDMA)

    Remote Direct Memory Access (RDMA) is a technology that enables two networked computers to exchange data in main memory without ...

  • storage (computer storage)

    Data storage is the collective methods and technologies that capture and retain digital information on electromagnetic, optical ...

  • storage medium (storage media)

    In computers, a storage medium is a physical device that receives and retains electronic data for applications and users and ...

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