From HandWiki
Short description: Auxiliary input/output device for a computer

A peripheral device or peripheral is an auxiliary hardware device used to transfer information into and out of a computer.[1] 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:

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

See also