peripheral - meaning and definition. What is peripheral
Online Dictionary

What (who) is peripheral - definition

Computer peripheral; Peripheral device; Peripherals; Periphals; Periferal; Computer interface device; External device; Computer peripheral devices; Physical device; Peripheral devices; Computer peripherals; Peripheral equipment; Computing product

adj. peripheral to
<hardware> (Or "peripheral device", "device") Any part of a computer other than the CPU or working memory, i.e. disks, keyboards, monitors, mice, printers, scanners, tape drives, microphones, speakers, cameras, to list just the less exotic ones. High speed working memory, such as RAM, ROM or, in the old days, core would not normally be referred to as peripherals. The more modern term "device" is also more general in that it is used for things such as a pseudo-tty, a RAM drive, or a network adaptor. Some argue that, since the advent of the personal computer, the motherboard, hard disk, keyboard, mouse, and monitor are all parts of the base system, and only use the term "peripheral" for optional additional components. (2002-09-03)
A peripheral activity or issue is one which is not very important compared with other activities or issues.
Companies are increasingly keen to contract out peripheral activities like training...
Science is peripheral to that debate.
The Marshall Plan did not include Britain, except peripherally.
Peripheral areas of land are ones which are on the edge of a larger area.
...urban development in the outer peripheral areas of large towns.
ADJ: usu ADJ n
Peripherals are devices that can be attached to computers. (COMPUTING)
...peripherals to expand the use of our computers.
N-COUNT: usu pl, oft N n



A peripheral device or peripheral is an auxiliary hardware device used to transfer information into and out of a computer. The term peripheral device 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, based on their relationship with the computer:

  • An input device sends data or instructions to the computer, such as a mouse, keyboard, graphics tablet, image scanner, barcode reader, game controller, light pen, light gun, microphone and webcam;
  • An output device provides output data from the computer, such as a computer monitor, projector, printer, headphones and computer speaker;
  • An input/output device performs both input and output functions, such as a computer data storage device (including a disk drive, solid-state drive, USB flash drive, memory card and tape drive), modem, network adapter and multi-function printer.

Many modern electronic devices, such as Internet-enabled digital watches, keyboards, and tablet computers, have interfaces for use as computer peripheral devices.

Pronunciation examples for peripheral
1. peripheral systems.
CIOs at Work _ Ed Yourden _ Talks at Google
2. peripheral vision.
Designing with the Mind in Mind _ Jeff Johnson _ Talks at Google
3. But peripheral visual stimulation.
Back to Front _ Peter Gabriel _ Talks at Google
4. broad peripheral awareness.
The New Rules Of Posture - How To Sit, Stand and Walk _ Mary Bond _ Talks at Google
5. our own peripheral devices.
Creating New Human Senses _ David Eagleman _ Talks at Google
Examples of use of peripheral
1. Yet the modernist coterie was tiny and peripheral.
2. Did peripheral vision mean a broader view of the consequences?
3. Mazel died from peripheral vascular disease at St.
4. Your peripheral fields still measure 10–12 degrees.
5. Despite this, peripheral vision is likely to remain undamaged.