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:For an account of the word "periphery" as it is used in biology, sociology, politics, computer hardware, and other fields, see the periphery disambiguation page.

A peripheral is a type of computer hardware that is added to a host computer, in order to expand its abilities. More specifically the term is used to describe those devices that are optional in nature, as opposed to hardware that is either demanded, or always required in principle.

The term also tends to be applied to devices that are hooked up externally, typically though some form of computer bus like USB. Typical examples include joysticks, printers and scanners. Devices such as monitors and disk drives are not considered peripherals because they are not truly optional, and video capture cards are typically not referred to as peripheral because they are internal devices.

1 List of common peripherals

Storage
- CD-ROM
- DVD
- Floppy disk
- Hard diskA hard disk (or hard disc or hard drive ) is a computer storage device. Mechanics A hard disk uses rigid rotating platters. It stores and retrieves digital data from a planar magnetic surface. Information is written to the disk by transmitting an electrom
- Punch cardThe punch card (or Hollerith card) is a recording medium for holding information for use by automated data processing machines. Made of stiff cardboard, the punch card represents information by the presence or absence of holes in predefined positions on t
- RAM
- Tape driveA tape drive is a peripheral device that reads and writes data stored on a magnetic tape or a punched tape. Tapes and drives come in various formats. These formats include DDS and Sony's new AIT. References Computer storage devices.
- Disk array controllerIn computing, a disk array controller is a computer hardware device which provides secondary storage services to computer systems, often in large servers. It is the critical component of a disk array . A disk array controller usually attaches to a number
Input/Output
- Braille embosserA Braille embosser is a printer, necessarily an impact printer, that renders text as Braille. Blind users call other printers ink printers. See also Perkins Brailler References .
- KeyboardA computer keyboard is a peripheral modelled after the typewriter keyboard. Keyboards are designed for the input of written text, and also to control the operation of the computer. Physically, computer keyboards are an arrangement of rectangular or near-r
- Monitor
- Computer terminal
- Mouse
- Computer speech recognition
- Computer speech synthesis
- DVD-ROM
- Digitizing tablet
- Graphics card
- Joystick
- Joypad
- Modem
- Network card
- Plotter
- Printer
- Refreshable Braille display
- Scanner
- Sound card
- Touch screen
- Trackball
- Webcam
- Pointing devices

Peripherals category in dmoz

Embedded systems Computer hardware

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Topics: Peripheral Component Interconnect, Peripheral Nervous System...

Peripheral Component InterconnectFor other meanings of PCI see PCI (disambiguation). motherboard The Peripheral Component Interconnect standard (in practice almost always shortened to PCI specifies a computer bus for attaching peripheral devices to a computer motherboard. These devices c	Peripheral nervous systemThe peripheral nervous system or PNS is part of the nervous system, and consists of the nerves and neurons that reside or extend outside the central nervous system--to serve the limbs and organs, for example. The peripheral nervous system is further divid	PeripheralFor an account of the word "periphery" as it is used in biology, sociology, politics, computer hardware, and other fields, see the periphery disambiguation page. A peripheral is a type of computer hardware that is added to a host computer, in order to exp
Peripheral membrane proteinPeripheral membrane proteins are proteins that adhere only loosely to the biological membrane with which they are associated. These molecules do not span the lipid bilayer core of the membrane, but attach indirectly, typically by binding to integral membr	Peripheral vascular diseasePeripheral vascular disease PVD is a disease in the large blood vessels of the arms, legs, and feet. People who have had diabetes for a long time may develop PVD because major blood vessels in their arms, legs, and feet are blocked and these limbs do not	Peripheral Interchange ProgramThe Peripheral Interchange Program (PIP on the Digital Equipment Corporation's DEC-10 and PDP-11 computers was a utility to transfer data files. After some use, it was finally realized that the hand-crafted syntax PIP destination:origin actually was inver
Peripheral vision	Peripheral device	Peripheral nerve field
Peripheral artery occlusive disease	Peripheral chemoreceptor	Peripheral neuropathy
Peripheral brain	Peripheral blood cell

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Home > Peripheral

1 List of common peripherals

2 External link

Topics: Peripheral Component Interconnect, Peripheral Nervous System...