1. Alternatively referred to as a Desktop and single-user computer, PC is short for Personal Computer and is a term coined by Ed Roberts when he introduced the MITS Altair 8800. PC is often used in the computer industry to describe an IBM or IBM-compatible computer even though the term PC can refer to any personal computer including an Apple Macintosh computer. In the picture to the right, is the Dell Precision 390 computer courtesy of Dell Inc. and an example of a Desktop PC.
2. An abbreviation used for percent, per cent, or percentage.
3. A Player Character (PC) is a character in a video game that is controlled by a real person, using a keyboard, mouse, or game controller. All actions performed by a PC are initiated by a real person. All characters in a game not controlled by a human are considered NPC.