SDF Public Access UNIX System presents ...

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  [a]  UNICS (Version Zero)   PDP-7       Summer   1969
  [b]  First Edition UNIX     PDP-11/20   November 1971
  [c]  Fifth Edition UNIX     PDP-11/40   June     1974
  [d]  Sixth Edition UNIX     PDP-11/45   May      1975
  [e]  Seventh Edition UNIX   PDP-11/70   January  1979
  [f]  Research UNIX 8        VAX-11/780           1984
  [g]  AT&T UNIX System III   PDP-11/70   Fall     1982
  [h]  AT&T UNIX System V     PDP-11/70            1983
  [i]  AT&T UNIX System V     3b2/400              1984
  [j]  4.3  BSD               MicroVAX    June     1986
  [k]  2.11 BSD               PDP-11/70   January  1992
  [w]  What's running now?
  [q]  QUIT (and run away in fear!)

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