Related:

• 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....
• 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&T's support crew was called the `UNIX Support Group'....
• 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&...
• 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....
• unafish: n. In hackish lore, refers to the mutated punchline of an age-old joke to be found at the bottom of the manual pages of `tunefs(8)' in the original {BSD} 4.
  2 distribution. The joke was removed in later releases once commercial sites started using 4....
• vi: /V-I/, *not* /vi:/ and *never* /siks/ [from `Visual Interface'] n.
  A screen editor crufted together by Bill Joy for an early {BSD} release....
• Death Star: [from the movie "Star Wars"] 1. The AT&T corporate logo, which appears on computers sold by AT&T and bears an uncanny resemblance to the Death Star in the movie.
  This usage is particularly common among partisans of {BSD} UNIX, who tend to regard the AT&T versions as inferior and AT&T as a bad guy....
• C: n. 1. The third letter of the English alphabet. 2.
  ASCII 1000011. 3. The name of a programming language designed by Dennis Ritchie during the early 1970s and immediately used to reimplement {{UNIX}}...
• unafish n. In hackish lore, refers to the mutated punchline of an age-old joke to be found at the bottom of the manual pages of tunefs(8) in the original BSD 4.
  2 distribution. The joke was removed in later releases once commercial sites started using 4....