Early Unix, was Re: Ultrix for DECstations

[Brent Hilpert]

woodelf wrote:
> 
> Brent Hilpert wrote:
> >
> >What is the oldest version (year) of UNIX available or known to be still existant?
> >
> Source code or executable code?   Don't ask me , ask them!
> http://minnie.tuhs.org/PUPS/    The 5 th edition seems to be the
> earliest complete
> version.  Also the C language has changed a good bit between version #1
> and #5 too.

Neat.. that pretty much covers it.

I liked the last part of the following quote:
  "If you have a historical bent, then you can run 5th, 6th or 7th Edition Unix.
  These tend to be limited in the hardware that they support. I'd recommend that
  you use one of the PDP-11 emulators for these systems, as it will give you less
  heartache then trying to install it on a real -11, and you probably will
  get frustrated by these old systems anyway."

For anyone else interested, the above links to an article on the early
development: 
  http://www.dei.isep.ipp.pt/docs/unix.html

And Ritchie provides some of his notes from 1972,
with mention of the DEC hardware supported:
  http://cm.bell-labs.com/cm/cs/who/dmr/notes.html