What does PC input/output actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

Basic Input Output System; Also known as: BIOS: This provides the basic instructions for a PC's hardware, and is coded into the computer's ROM (or Read Only Memory).

A set of input keys on a personal computer or computer terminal. Along with the standard letter keys on a typewriter, computer keyboards have keys for cursor movement and entering commands as ...