Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!usc!rutgers!cbmvax!cbmehq!cbmger!peterk
From: peterk@cbmger.UUCP (Peter Kittel GERMANY)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: AT bus in 2000 and 3000
Message-ID: <1221@cbmger.UUCP>
Date: 13 May 91 09:52:46 GMT
References: <21093@cbmvax.commodore.com> <0kqF24w163w@dworkin.Amber.COM> <1991May6.114751.5024@marlin.jcu.edu.au> <1991May8.032757.12335@cs.cornell.edu> <21393@cbmvax.commodore.com> <42181@cup.portal.com>
Reply-To: peterk@cbmger.UUCP (Peter Kittel GERMANY)
Organization: Commodore Bueromaschinen GmbH, West Germany
Lines: 29

In article <42181@cup.portal.com> FelineGrace@cup.portal.com (Dana B Bourgeois) writes:
>You know you're getting older when you remember stuff that many others
>never heard of.....::sigh::
>
>One of the CBM Pet machines had more than one CPU in it.  I think it was 
>the 2000 model but that one had a 6502 and a Z80 like the C128 so it may
>not qualify.  Is it the earliest CBM machine to have multi-processors in
>it?

Huh? A Z80? I only know of the MMF 9000 (MicroMainFrame, perhaps identical
with that "SuperPET"), which had a 6502 plus a 6809.

If you only want multi-processing, why not consider the old PET plus its
floppy stations which had *two* 6502's (ok, one was 6504 really) built in?
Today a floppy counts as integral part of the computer, so in total we had
three CPUs there.

Oh sorry, now I remember more (seems like really getting old):
There was also the CBM 600/700 which had indeed a coprocessor slot.
It was intended for a Z80 (CP/M) *OR* an 8088 (MS-DOS). There existed
prototypes of both, and a small series of the 8088 version was even
sold in Austria to authorities, but it never made it to the normal public.
It was really a rather wierd concept to run MS-DOS from an 8050 floppy.
Those who know this disk format know that there was *NO* easy way to get
an MS-DOS application onto this.

-- 
Best regards, Dr. Peter Kittel  // E-Mail to  \\  Only my personal opinions... 
Commodore Frankfurt, Germany  \X/ {uunet|pyramid|rutgers}!cbmvax!cbmger!peterk