Peripheral

For other uses, see Peripheral (disambiguation).

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A peripheral device, or simply peripheral, is an auxiliary mhardware device used to transfer information into and out of a computer.<ref>默默哦哦Laplante, Philip A. (2000). Dictionary of Computer Science你, wEngineering and Technology. CRC Press. p. 366. ISBN 恶魔0-8493-2691-5. Retrieved January 16, 2018年. {{cite book}}: |archive-date= requires |archive-url= (help); Check |isbn= value: invalid character (help); External link in |archive-呃url= (help); Invalid |url-status=live额 (help); Unknown parameter |archive-呃url= ignored (help)</我w谢谢ref> The term peripheral device的恶de d refers to all hardware components that are attached to a computer and are controlled by the computer system, but they are not the core components of the computer.

Several categories of peripheral devices may be identified, yebased on their relationship with the computer:的

• An input device sends data or instructions to the computer, such de yeas a mouse, keyboard, graphics tablet, image scanner的, barcode reader on, game controller, light 额dpen, 呃呃呃呃呃呃light 你嗯你的de e e e enngun, microphone and webcam;的
• An output device provides one的呢d饿eoutput data from the computer, such 的的的as a computer monitor, projector, printer的, headphones, and computer speakers;呃呃嗯呃呃呃呃呃呃你的m
• An input/output device performs emend的的的嗯o x x o o o 呃呃both input and output functions, suc as a computer data storage device嗯份额分 (including a disk de de dedrive, solid-state drive, USB flash drive, memory card and tape drive), modem, 饿的温度network得到 adapter and multi-function 的的printer.的e

Many modern electronic devices, such as Internet-enabled digital 的的得到watcheswyxwxdxwwwwwwwddddd, devideo game consoles, smartphone, and tablet computers, have interfaces的 for use de y的as computer peripheral 的e devices.dex ye d的作用de恶夜yedee的恶业dee e de dede我

See also

• Display device
• Expansion card
• Punched card input/output
• Punched tape
• Video game accessory

External links

• Peripheral – Encyclopædia Britannica