peripheral device

equipment that is connected to a computer (printer, keyboard, etc.)

In computer hardware, a peripheral device is any device attached to a computer in order to expand its functionality. Some of the more common peripheral devices are printers, scanners, disk drives, tape drives, microphones, speakers, and cameras. A device can also refer to a non-physical item, such as a pseudo-tty, a RAM drive, or a network adapter.
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Noun
1. (computer science) electronic equipment connected by cable to the CPU of a computer; "disk drives and printers are important peripherals"
(synonym) peripheral, computer peripheral
(hypernym) electronic equipment
(hyponym) printer
(part-holonym) computer, computing machine, computing device, data processor, electronic computer, information processing system
(classification) computer science, computing

See peripheral equipment.

peripheral