Path: utzoo!mnetor!uunet!mcrware!kim
From: kim@mcrware.UUCP (Kim Kempf)
Newsgroups: comp.sys.m68k
Subject: Re: A/UX window systems, Mac toolbox, etc
Message-ID: <684@mcrware.UUCP>
Date: 29 Mar 88 16:18:04 GMT
References: <4129@hoptoad.uucp> <283@rhesus.primate.wisc.edu> <1710@ssc-vax.UUCP> <215@ditka.UUCP>
Organization: Microware Systems Corp., Des Moines, Ia.
Lines: 16
Summary: UNIX weenies

>In article <7681@agate.BERKELEY.EDU> mwm@eris.UUCP (Mike (My watch has windows) Meyer) writes:
>>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?

OS-9 is pre-emptive multitasking and runs on the 68000.  For that matter,
OS-9 did it on the 6809 (e.g. Tandy Color Computer).  Such facilities are
not necessarily provided by the hardware but by the skill and ingenuity of
the programmer...

Kim Kempf
Microware Systems Corporation.