Multiple choice 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 derived from 'Multics' as a pun, but it does not stand for any specific phrase. Options like 'UNIt eXchange' and 'UNIform eXchange' are backronyms invented after the fact.