Yep, Zilog Enhanced Unix System.  Back in those days, vendors weren't
allowed to name their OS 'Unix' (which is why you had all those names that
typically had -ix somewhere in them).
Mark
On Thu, May 8, 2008 at 11:46 AM, Tony Duell <ard at p850ug1.demon.co.uk> wrote:
 
 Hello,
 does anybody have information/source code/anything about the
 Zilog Zeus System? It is a System III Unix derivate running
 on a Z8001 16bit CPU. I'm looking for more infos on that. 
 No real info, alas...
 Zeus was supposedly an acronym for Zilog Enhanced Unix System , or
 something similar
 I ahve a Zilog S8000 Model 30 (the large-ish tower machine built in
 slices with an SMD hard disk and QIC tape drive). I should have the
 (inary) distriution tape for that somewhere, and I hope the hard disk is
 still readable (I've not used it for some time, it was fine last time I
 used it, and I locked the heads afterwards...). But no source code, or
 even full shcemaitcs (YET!).
 -tony