What does Unix stand for ?

Unix is not an acronym; In 1969 Ken Thompson wrote the first version of Unix, called UNICS. The name “Unix” was intended as a pun on Multics (and was written “Unics” at first — UNiplexed Information and Computing System).

Unix is a powerful, multi-user environment. Unix was developed at Bell Labs in 1969. Examples of Unix implementations include Mac OS X/Darwin (Apple), GNU/Linux, AIX (IBM), Solaris (Sun), IRIX (SGI), and FreeBSD.

Free Unix-like operating systems

The GNU Project was launched in 1984 to develop a complete Unix-like operating system which is free software: the GNU system.

Popular Free Unix-like operating systems distributions based on GNU/Linux include

  • Red Hat Enterprise Linux
  • Fedora
  • SUSE Linux Enterprise
  • OpenSUSE
  • Debian GNU/Linux
  • Ubuntu
  • Mandriva Linux
  • Slackware Linux
  • Gentoo

BSD-based Operating Systems

Berkeley Software Distribution (BSD, sometimes called Berkeley Unix) is A UNIX-like operating system. Check out the list of Free BSD-based Operating Systems.

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