Path: utzoo!mnetor!uunet!husc6!think!bloom-beacon!mit-eddie!uw-beaver!cornell!rochester!PT.CS.CMU.EDU!cadre!pitt!darth!formtek!ditka!kls
From: kls@ditka.UUCP (Karl Swartz)
Newsgroups: comp.sys.m68k
Subject: Re: A/UX window systems, Mac toolbox, etc
Message-ID: <215@ditka.UUCP>
Date: 23 Mar 88 08:25:19 GMT
References: <4129@hoptoad.uucp> <283@rhesus.primate.wisc.edu> <1710@ssc-vax.UUCP> <9829@steinmetz.steinmetz.UUCP> <7593@apple.Apple.Com> <3609@bloom-beacon.MIT.EDU> <7656@apple.Apple.Com> <7670@apple.Apple.Com> <7681@agate.BERKELEY.EDU>
Reply-To: kls@ditka.UUCP (Karl Swartz)
Organization: Pittsburgh Fish Hackery, Pittburgh, PA
Lines: 25
Summary: Sun uses 680[12]0, not 68000

In article <7681@agate.BERKELEY.EDU> mwm@eris.UUCP (Mike (My watch has windows) Meyer) writes:
>[Followups have been pointed to comp.sys.68k.]
>
>In article <7670@apple.Apple.Com> goldman@apple.UUCP (Phil Goldman) writes:
><I think one point you are both missing out on is that preemptive multitasking
><requires hardware support not available on a 68000.
>
>Right. So how did Sun, Apollo, Amiga, Sage, Stride and a multitude of
>others manage to market 68000 systems that did preemptive
>multitasking?

Neither Sun nor Apollo ever marketed systems based on the 68000,
to the best of my knowledge.  The Sun-2 uses a 68010, while the
Sun-3 family uses a 68020.  Likewise, I believe Apollo's are
based on these processors (larger models now use some custom
stuff) and not the vanilla 68000.

Not that this implies that multi-tasking is impossible on the
68000.  The Amiga is a prime counter example.

-- 
Karl Swartz		|UUCP	decvax!formtek!ditka!kls
1-412/937-4930 office	|	{floyd,pitt,psuvax1}!idis!formtek!ditka!kls
			|BIX	kswartz
"I never let my schooling get in the way of my education."  (Twain)