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From: xtdn@levels.sait.edu.au
Newsgroups: comp.unix.questions
Subject: Re: AT&T "nth Edition" vs. "Release n"
Message-ID: <15939.27d2ddef@levels.sait.edu.au>
Date: 4 Mar 91 23:53:19 GMT
References: <6798@idunno.Princeton.EDU>
Followup-To: comp.unix.questions
Organization: University of South Australia
Lines: 16

subbarao@phoenix.Princeton.EDU (Kartik Subbarao) writes:
> I've seen people that use System V and the like refer to their Unix as
> "tenth edition" or "ninth edition", or whatever. I've always seen things as
> "System V release n", or whatever. Anyone know the difference between these
> different naming schemes ?

As it was explained to me, the i'th edition refers to AT&T's i'th edition
of the manuals describing their research OS.  System V release j refers to
the j'th major release of System V (which is just what you'd expect).
System V derives from System III which derives from 6th edition (or there
abouts).  BSD unix derives from 7th edition.


David Newall, who no longer works       Phone:  +61 8 344 2008
for SA Institute of Technology          E-mail: xtdn@lux.sait.edu.au
                "Life is uncertain:  Eat dessert first"