Peripheral Device

Definition - What does Peripheral Device mean?

A peripheral device is an internal or external device that connects directly to a computer but does not contribute to the computer's primary function, such as computing. It helps end users access and use the functionalities of a computer.

Techopedia explains Peripheral Device

A peripheral device provides input/output (I/O) functions for a computer and serves as an auxiliary computer device without computing-intensive functionality. Peripheral devices connect with a computer through several I/O interfaces, such as communications (COM), Universal Serial Bus (USB) and serial ports.

Peripheral devices include the following:

  • Mouse
  • Keyboard
  • Printer
  • Webcam
  • Printer
  • Scanner
  • External drives
  • Graphics cards
  • CD- Rom
A peripheral device may be classified as an internal or external peripheral device.
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