Wikipedia 10K Redux by Reagle from Starling archive. Bugs abound!!!
Unix is an [[Operating System]] written by Ken Thompson and Dennis Ritchie at Bell Labs in 1969. Originally UNICS, which stands for Uniplexed Information and Computing Service, which was a lesser variant of a project called MULTICS, Mulitplexed Information and Computing Service. Unix is more a class of [[operating system]] than a specific [[operating system]]. There are two basic variants: [[BSD]] and [[System V]]. Most [[Unix]] and [[Unix-like]] [[operating systems]] fall neatly (or less so) into one of these categories.