peripheral device

== English == === Pronunciation === === Noun === peripheral device (plural peripheral devices) (computer hardware) An electronic device that is outside the computer's system unit (external to the computer's enclosing case), but used by the computer to which it is connected, such as a printer or a scanner. ==== Synonyms ==== peripheral ==== Hyponyms ==== I/O device human interface device keyboard mouse external disk drive ==== Translations ==== ==== See also ==== interface SCSI USB sub-system