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). Note that this usage does not derive from the release
being the "seventh version of {Unix}"; research {Unix} at Bell Labs
has traditionally been numbered according to the edition of the
associated documentation. Indeed, only the widely-distributed Sixth
and Seventh Editions are widely known as V[67]; the OS that might
today be known as `V10' is instead known in full as "Tenth Edition
Research Unix" or just "Tenth Edition" for short. For this reason,
"V7" is often read by cognoscenti as "Seventh Edition". See {BSD},
{Unix}. Some old-timers impatient with commercialization and kernel
bloat still maintain that V7 was the Last True Unix.
[glossary]
[Reference(s) to this entry by made by: {Unix}{V7}]