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Computing and digital systems

13,604 articles

General

Computer fan

A computer fan, or case fan, is a small brushless DC fan that moves air through computers and servers to carry heat away from components.

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Computer file

A computer file, sometimes called an electronic file, is a named unit of data in a file system that users and programs can access and manage.

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Computer forensics

Computer forensics, also called digital forensics, is the identification, collection, examination, and analysis of computer data under a strict chain of custody, serving criminal investigations and security-incident reconstruction.

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Computer Fraud and Abuse Act

The Computer Fraud and Abuse Act (CFAA), first enacted in 1984 and rewritten in 1986, is the principal US federal law prohibiting unauthorized access to protected computers.

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Computer graphics

Computer graphics is the field concerned with producing pictures using a computer, spanning the hardware, software, and applications, including film special effects, games, simulation, medical imagery, and design.

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Computer hardware

Computer hardware, also called PC hardware, is the physical equipment of a computer system. Its core parts include the CPU, RAM, storage drives, and the motherboard that connects them.

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Computer keyboard

A computer keyboard is an input device whose keys send coded signals to a computer, descended from the typewriter and using the QWERTY layout since the 1870s.

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Computer language

A computer language is a formal system of notation, defined by syntax and semantics, that people use to describe computations to a computer, including languages like Python and C.

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Computer memory

Computer memory is the part of a computer that holds programs and data the processor is actively using, spanning processor caches, DRAM main memory, and flash.

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Computer monitor

A computer monitor, or computer screen, is an electronic display device that presents a computer's visual output, first on CRT tubes and now mostly LCD panels.

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Computer mouse

A computer mouse is a hand-held pointing device that converts hand movement into cursor movement on screen, invented by Doug Engelbart in the early 1960s.

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Computer multitasking

Computer multitasking, also called concurrent processing, is the ability of an operating system to run several programs on one CPU by switching between them fast enough that they appear simultaneous.

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Computer network

A computer network, or data network, is a system of interconnected computers, routers, and cabling that moves data between devices; the Internet is the largest example.

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Computer performance

Computer performance is the amount of useful work a computer system accomplishes per unit of time, measured as latency (time to finish a task) or throughput (tasks completed in a fixed time).

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Computer port (hardware)

A computer port is a physical interface, such as USB, HDMI, or Ethernet, through which data, power, or audio-visual signals pass between a computer and external devices.

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Computer program

A computer program, also known as a software program, is a set of instructions a computer executes, written in programming languages and forming software with its data.

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Computer programming

Computer programming, also known as software programming or computer coding, is the process of writing instructions in a programming language that a computer executes step by step to produce correct results.

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Computer room air conditioner

A computer room air conditioner (CRAC) is a self-contained precision cooling unit that cools data centers and server rooms using its own compressor-based refrigeration, controlling temperature, humidity, and airflow.

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Computer science

Computer science, also called computing science or compsci, is the systematic study of algorithmic processes, spanning theory, algorithms, programming languages, and artificial intelligence; its central open problem is P versus NP.

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Computer Science Teachers Association

The Computer Science Teachers Association (CSTA) is a professional association for K-12 computer science teachers, founded in 2004 with ACM support and known for its K-12 Computer Science Standards.

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Computer Sciences Corporation

Computer Sciences Corporation (CSC) was an American information technology services company founded in April 1959 by Roy Nutt and Fletcher Jones, and merged into DXC Technology on April 1, 2017.

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Computer security

Computer security, also called IT security or digital security, is the protection of computer systems and the information they hold from unauthorized access, disruption, modification, or destruction.

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Computer terminal

A computer terminal, also called a video terminal or glass teletype, is a keyboard and screen or printer for interacting with a distant computer, key to time-sharing.

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Computer virus

A computer virus, a term now often used for malware generally, is malicious software that copies itself into other programs and runs when the host program is invoked.

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Computer vision

Computer vision is the field of computing concerned with visual perception by computers, extracting information from images and video to recognize objects and reconstruct scenes.

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Computer vision dazzle

Computer vision dazzle, also called CV Dazzle or anti-surveillance makeup, is bold makeup and hairstyling created by artist Adam Harvey in 2010 to defeat face detection and facial recognition software.

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Computer worm

A computer worm, also called a network worm, is self-contained malware that copies itself across computer networks without a host program, often without user intervention, as the 1988 Morris worm first showed.

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Computer-aided design

Computer-aided design (CAD) is the use of computer software to create, modify, and document 2D drawings and 3D models of parts and buildings, supporting engineering design since around 1960.

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Computer-assisted translation

Computer-assisted translation (CAT), also called machine-aided translation, uses software like translation memories and termbases to help a human translator, who reviews and decides on the final translation.

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Computer-generated imagery

Computer-generated imagery (CGI), also known as computer imagery, creates still or animated visual content with imaging software, spanning 3D modeling, animation, and rendering in film and games.