edgepedia

Boards, peripherals & form factors

368 articles

General

ATX

ATX, or Advanced Technology Extended, is an Intel specification defining the dimensions, mounting holes, rear I/O, and power connectors of the standard desktop PC, including microATX and Mini-ITX derivatives.

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Audio and video interfaces and connectors

Audio and video interfaces and connectors are the ports, plugs, cables, and signaling standards, from VGA and RCA to HDMI, DisplayPort, and USB-C, that carry sound and picture between devices.

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Backplane

A backplane is a circuit board or wiring structure with a shared bus and connectors into which a computer's separate circuit boards plug to communicate and receive power.

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Banana Pi

Banana Pi is a family of open-source single-board computers launched in April 2014 as a faster Raspberry Pi-compatible board, now made by Chinese manufacturer SINOVOIP.

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Barcode reader

A barcode reader, or barcode scanner, is an input device that shines light on a barcode, decodes the reflected signal, and transmits the data to a host computer.

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Belkin

Belkin, formally Belkin International, is an American consumer electronics accessories company founded by Chet Pipkin in 1983, known for chargers and cables and owned by Foxconn since 2018.

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BenQ

BenQ Corporation, formerly Acer Communication & Multimedia, is a Taiwanese electronics company in Taipei, launched in 2001 and known for LCD monitors, projectors, and gaming displays.

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BIOS

The BIOS, or Basic Input/Output System, is the firmware of a personal computer that initializes the hardware at power-on and then loads the operating system.

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Biostar Microtech

Biostar Microtech (映泰) is a Taiwanese computer hardware manufacturer founded in 1986, best known for its BIOSTAR-brand motherboards, and also makes graphics cards, SSDs, and industrial PCs.

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Blade server

A blade server, also called a computing blade, is a stripped-down server module that slides into a shared chassis, which supplies power, cooling, networking, and management for many blades.

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British and American keyboards

British and American keyboards, or US and UK keyboards, are the two main English-language layouts: the UK layout follows the ISO standard with 105 keys and £ on Shift+3, the US follows ANSI with 104.

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Buck converter

The buck converter, or step-down converter, is a DC-DC converter that reduces a higher DC voltage to a lower one, efficiently and with little power lost as heat.

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Bus (computing)

A bus in computing, also called a computer bus, is a shared communication pathway that transfers data between components, carrying address, data, and control signals.

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Bus mastering

Bus mastering is a computer bus capability in which a peripheral device, rather than the CPU, takes control of the bus and initiates data transfers directly, reducing CPU workload.

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Calculator

A calculator, or electronic calculating machine, is a small electronic device with a keypad, display, and dedicated processor for arithmetic, persisting in exams where phones are banned.

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Chad (paper)

Chad, also known as paper chad, is the small pieces of paper removed when holes are punched in punched cards, paper tape, or ballot cards.

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Charles Liang (梁见后)

Charles Liang Chien-Hou (梁见后) is a Taiwanese-American electrical engineer who founded server maker Supermicro in San Jose in 1993, building it from motherboards into AI and data-center systems.

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Chipset

A chipset is the support silicon on a motherboard that manages input/output and communication between the processor and the rest of the system, once split into north bridge and south bridge chips.

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Chorded keyboard

A chorded keyboard, also called a chording keyboard or keyset, is an input device on which characters are entered by pressing several keys together, used in stenotype machines and wearable computing.

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CLIÉ

CLIÉ, also called Sony Clié (クリエ), was a line of Palm OS personal digital assistants sold by Sony from 2000 to 2005, known for multimedia features like built-in cameras and high-resolution screens.

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COM Express

COM Express is a computer-on-module standard ratified by PICMG in 2005, where a module carrying CPU, memory, and BIOS plugs into a custom carrier board.

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Command key

The Command key (⌘), also known as the Apple key, is a modifier key on Apple keyboards, held with another key to invoke shortcuts like Command-C for copy.

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Commodore International

Commodore International, also Commodore Electronics, was an electronics company founded by Jack Tramiel, best known for the Commodore 64 and Amiga computers; it liquidated in 1994.

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CompactPCI

CompactPCI (cPCI) is an industrial computer standard, ratified by PICMG in 1995, that places the PCI bus on rugged Eurocard mechanics for industrial, telecom, and defense systems.

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Compaq

Compaq Computer Corporation, founded in 1982, was an American PC manufacturer famous for producing early IBM compatible systems and becoming the world's largest PC maker before 2002.

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Compose key

The compose key, known in X11 as Multi key, is a keyboard key that starts short keystroke sequences producing characters not on the key caps, such as é or @.

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Compute Express Link

Compute Express Link (CXL) is an open interconnect standard, developed by the CXL Consortium and built on PCIe, that lets processors attach accelerators and memory coherently.

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Computer case

A computer case, also called a system unit or chassis, is the enclosure that houses and protects a computer's main components, including the motherboard and power supply.

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Computer case screws

Computer case screws are the fasteners securing a PC's components, panels, and drives to the chassis, with #6-32 UNC for panels, drives, and power supplies and metric M3 for motherboards.

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Computer cooling

Computer cooling is the hardware that moves waste heat from computer chips to the surrounding environment, keeping dies below their 85–125 °C junction limits, spanning heatsinks to immersion cooling.