Definition, synonyms and related words
plural of peripheral
"The new printer and scanner are among the many peripherals connected to my home office computer."
In plain English: Peripherals are external devices you connect to a computer, like a mouse or printer, to help you use it better.
"You can connect your mouse and keyboard to the computer using USB peripherals."
Usage: In computing, peripherals are external devices like keyboards and monitors that connect to a computer to expand its capabilities. Use this term specifically when referring to hardware accessories rather than abstract concepts or body parts.
Derived from the Latin peripheria, meaning "the edge," this term originally described items situated on the circumference or boundary of something. In modern usage, it refers to external input and output devices connected to a computer system.