Multiple choice general knowledge science & technology UNIX is short for what? UNIt eXchange UNIform eXchange UNIt X It is not an acronym Reveal answer Fill a bubble to check yourself D Correct answer Explanation UNIX is not an acronym. The name was a pun on 'Multics' (Uniplexed Information and Computing Service), but the creators Ken Thompson and Dennis Ritchie have clarified that UNIX does not stand for anything specific - it's just a name.