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From: rbl@nitrex.UUCP
Newsgroups: comp.sys.ibm.pc
Subject: Re: Minor historical point: the origin of ms-dos
Message-ID: <411@nitrex.UUCP>
Date: Fri, 30-Jan-87 12:10:59 EST
Article-I.D.: nitrex.411
Posted: Fri Jan 30 12:10:59 1987
Date-Received: Sat, 31-Jan-87 06:41:44 EST
References: <8520@topaz.RUTGERS.EDU> <1270@cbmvax.cbmvax.cbm.UUCP> <14439@amdcad.UUCP> <104@tg.UUCP> <1361@masscomp.UUCP>
Reply-To: rbl@nitrex.UUCP ( Dr. Robin Lake )
Organization: The Standard Oil Co., Cleveland
Lines: 19
Keywords: CP-M, DEC, DOS, PDP-11, 8086
Summary: Seems more like DEC's PDP-11 DOS

In:
Message-ID: <1361@masscomp.UUCP>

>Alan Groupe says:
>CP/M has nothing to do with RSX-11.  RSX is inherently a multi-tasking
>system.
>
>CP/M appears to be an outgrowth of RT-11.  RT-11 was an outgrowth of
>OS/8 on the PDP-8.  This brings things around full circle, since the
>architecture of the 8086 is somewhere in between the PDP-8 and the PDP-11.
>
>
Gee, I'd have guessed that CP/M was a clone of DEC's PDP-11 DOS.  The
command line iterpreter and file structures seem similar when you work
with CP/M, but then again  ---  I've not used CP/M in many months.

Robin
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