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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.

Computing fundamentals

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

  • ping strangeness

    Ping strangeness is a term used in troubleshooting to describe the incidence of an unusual pattern of ICMP ECHO_REQUEST packets being sent to a specific network node or an unusual number of error messages returning.

  • corollary

    A corollary is a statement that follows naturally from some other statement that has either been proven or is generally accepted as true.

  • URL shortening

    URL shortening is the translation of a long Uniform Resource Locator (URL) into an abbreviated alternative that redirects to the longer URL.

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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.

  • microcontroller

    A microcontroller is a compact integrated circuit designed to govern a specific operation in an embedded system.

  • infrared radiation (IR)

    Infrared radiation (IR), sometimes referred to simply as infrared, is a region of the electromagnetic radiation spectrum where wavelengths range from about 700 nanometers (nm) to 1 millimeter (mm).

  • fiber optics (optical fiber)

    Fiber optics, or optical fiber, refers to the medium and the technology associated with the transmission of information as light pulses along a glass or plastic strand or fiber.

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Fast references

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

  • 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.

  • PCI DSS Requirements Fast Guide

    A chart that lists the 6 control objectives and 12 requirements that make up the Payment Card Industry Data Security Standards (PCI DSS).

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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.

  • Flat-panel TV Guide

    Benefits of flat-panel TVs | Flat-panel features to considerA quick comparison of LCD, LED, OLED and plasma TVsFlat-panel TV technologies: LCD | LED | Plasma | OLEDMore informationA flat-panel TV is a television set that uses one of several different technologies for display in a flat, thin format.

  • Information Kit: Grid Computing

    Grid computing (or the use of a computational grid) is applying the resources of many computers in a network to a single problem at the same time

  • Learn IT: How Spam Affects Email Marketing Campaigns

    1. What's the difference between spam and legitimate email marketing? Spam is unsolicited bulk email (UBE).

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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.

  • Ethereum

    Ethereum is an open source, distributed software platform and cryptocurrency built off of blockchain technology.

  • collaborative filtering

    Collaborative filtering is the predictive process behind recommendation engines.

  • Markov model

    A Markov model is a stochastic method for randomly changing systems where it is assumed that future states do not depend on past states.

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Microprocessors

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

  • 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. Neural net processors reduce the requirements for brain-like computer processing from whole networks of computers that excel in complex applications such as AI, machine learning or computer vision down to one multi-cored chip.

  • quad-core processor

    A quad-core processor is a chip with four independent units called cores that read and execute central processing unit (CPU) instructions such as add, move data, and branch.

  • 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.

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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.

  • fourth industrial revolution

    The fourth industrial revolution is the current environment in which disruptive technologies and trends such as the Internet of Things (IoT) and artificial intelligence (AI) are changing the way we live and work.

  • nanotechnology (molecular manufacturing)

    Nanotechnology, or, as it is sometimes called, molecular manufacturing, is a branch of engineering that deals with the design and manufacture of extremely small electronic circuits and mechanical devices built at the molecular level of matter.

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Podcasts

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

  • stream recorder (stream ripper)

    What is stream recorder?A stream recorder (sometimes called a stream ripper) is a program used to save streaming media to a file so that it can be accessed locally.

  • destreaming

    Destreaming, in a multimedia context, is the practice of saving streamed data as a file.

  • 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.

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Protocols

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

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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.

  • distributed control system (DCS)

    A distributed control system (DCS) is an industrial control system (ICS) that uses a large number of distributed industrial process control loops throughout the system along with centralized supervisory control by an operator.

  • agbot (agricultural robot)

    An agbot, also called an agribot, is an autonomous robot used in farming to help improve efficiency and reduce reliance on manual labor.

  • universal basic income (UBI)

    Universal basic income (UBI) is a model for providing all citizens of a country or other geographic area with a given sum of money, regardless of their income, resources or employment status.

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Video Production

Definitions about producing and editing 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.

  • Khan Academy

    The Khan Academy is a non-profit educational organization that provides free video tutorials and interactive exercises.

  • screencast

    A screencast is a digital video recording that captures actions taking place on a computer desktop.

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SearchCompliance

  • internal audit (IA)

    An internal audit (IA) is an organizational initiative to monitor and analyze its own business operations in order to determine ...

  • pure risk (absolute risk)

    Pure risk, also called absolute risk, is a category of threat that is beyond human control and has only one possible outcome if ...

  • risk assessment

    Risk assessment is the identification of hazards that could negatively impact an organization's ability to conduct business.

SearchSecurity

  • computer exploit

    A computer exploit, or exploit, is an attack on a computer system, especially one that takes advantage of a particular ...

  • cyberwarfare

    Cyberwarfare is computer- or network-based conflict involving politically motivated attacks by a nation-state on another ...

  • insider threat

    Insider threat is a generic term for a threat to an organization's security or data that comes from within.

SearchHealthIT

SearchDisasterRecovery

  • business continuity and disaster recovery (BCDR)

    Business continuity and disaster recovery (BCDR) are closely related practices that describe an organization's preparation for ...

  • business continuity plan (BCP)

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

  • call tree

    A call tree -- sometimes referred to as a phone tree -- is a telecommunications chain for notifying specific individuals of an ...

SearchStorage

  • OpenStack Block Storage (Cinder)

    OpenStack Block Storage (Cinder) is open source software designed to create and manage a service that provides persistent data ...

  • SATA Express (SATAe)

    SATA Express (SATAe or Serial ATA Express) is a bus interface to connect storage devices to a computer motherboard, supporting ...

  • DIMM (dual in-line memory module)

    A DIMM (dual in-line memory module) is the standard memory card used in servers and PCs.

SearchSolidStateStorage

  • 3D XPoint

    3D XPoint is memory storage technology jointly developed by Intel and Micron Technology Inc.

  • 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 ...

  • JEDEC

    JEDEC is a global industry group that develops open standards for microelectronics.

SearchCloudStorage

  • Google Cloud Storage

    Google Cloud Storage is an enterprise public cloud storage platform that can house large unstructured data sets.

  • RESTful API

    A RESTful application program interface breaks down a transaction to create a series of small modules, each of which addresses an...

  • cloud storage infrastructure

    Cloud storage infrastructure is the hardware and software framework that supports the computing requirements of a private or ...

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