Related:

• USG Unix /U-S-G yoo'niks/ n. Refers to AT&T Unix commercial versions after Version 7, especially System III and System V releases 1, 2, and 3.
  So called because during most of the lifespan of those versions AT&...
• Slowlaris /slo'-lahr-is/ n. [Usenet; poss. from the variety of sloth called a "slow loris".
  The variant `Slowlartus' is also common, related to LART] Common hackish term for Solaris, Sun's System VR4 version of UNIX that came out of the standardization wars of the early 1990s....
• BSD /B-S-D/ n. [abbreviation for `Berkeley Software Distribution'] a family of Unix versions for the DEC VAX and PDP-11 developed by Bill Joy and others at Berzerkeley starting around 1980
  incorporating paged virtual memory, TCP/IP networking enhancements, and many other features....
• BSD: /B-S-D/ n. [abbreviation for `Berkeley System Distribution'] a family of {{UNIX}} versions for the {DEC} {VAX} and PDP-11 developed by Bill Joy and others at {Berzerkeley} starting around 1980
  incorporating paged virtual memory, TCP/IP networking enhancements, and many other features....
• Version 7: alt. V7 /vee' se'vn/ n. The 1978 unsupported release of {{UNIX}} ancestral to all current commercial versions.
  Before the release of the POSIX/SVID standards, V7's features were often treated as a UNIX portability baseline....
• Unix /yoo'niks/ n. [In the authors' words, "A weak pun on Multic
  very early on it was `UNICS'] (also `UNIX') An interactive time-sharing system invented in 1969 by Ken Thompson after Bell Labs left the Multics project, originally so he could play games on his scavenged PDP-7....
• UNIX:: /yoo'niks/ [In the authors' words, "A weak pun on Multics"] n.
  (also `Unix') An interactive time-sharing system invented in 1969 by Ken Thompson after Bell Labs left the Multics project, originally so he could play games on his scavenged PDP-7....
• Version 7 alt. V7 /vee' se'vn/ n. The first widely distributed version of Unix, released unsupported by Bell Labs in 1978.
  The term is used adjectivally to describe Unix features and programs that date from that release, and are thus guaranteed to be present and portable in all Unix versions (this was the standard gauge of portability before the POSIX and IEEE 1003 standards)....
• Devil Book: n. "The Design and Implementation of the 4.
  3BSD UNIX Operating System", by Samuel J. Leffler, Marshall Kirk McKusick, Michael J....