Is UNIX an acronym? What does it stand for?
Despite often being written in all caps, UNIX is not an acronym, therefore it doesn't have a full expansion. The name is a play on Multics which was an acronym (Multiplexed Information and Computing Service). That was an other early operating system around at the time of Unix creation.
Edit: As Marc stated it was originaly called Unics but once it could support multiple users it was renamed Unix which is not an acronym.
- Unix, originally Unics.
- Peter Gabriel Neumann named it UNICS (UNiplexed Infomation and Computing Service) as a pun on the multi-user MULTICS(MULTiplexed Information and Computing Service) system.
- Peter Gabriel Neumann (born 1932) is a computer-science researcher who worked on the Multics operating system in the 1960s.
- Multics was a mainframe time-sharing operating system that was developed in the 1963-1969 period through the collaboration of the Massachusetts Institute of Technology (MIT), General Electric (GE), and Bell Labs.