Path: utzoo!attcan!uunet!cbmvax!ditto
From: ditto@cbmvax.UUCP (Michael "Ford" Ditto)
Newsgroups: comp.sys.amiga.tech
Subject: Re: IRQ virus (and a personal note to Steve)
Summary: Any OS can "do" real-time with enough hardware help
Message-ID: <5621@cbmvax.UUCP>
Date: 4 Jan 89 01:47:44 GMT
References: <5601@cbmvax.UUCP> <5602@cbmvax.UUCP> <10788@s.ms.uky.edu> <10795@s.ms.uky.edu> <3205@sugar.uu.net> <10800@s.ms.uky.edu>
Reply-To: ditto@cbmvax.UUCP (Michael "Ford" Ditto)
Organization: Commodore Technology, West Chester, PA
Lines: 18

In article <10800@s.ms.uky.edu> sean@ms.uky.edu (Sean Casey) writes:
> Tell it to NeXT. The NeXT box can multitask and DSP too.

The box can, but the OS can't.  Without an intelligent coprocessor
like the nEXt has, Mach is not quite up to real-time response.  The
DSP chip on its own is about as real-time as you get, but there's
not much chance of a Mach process responding to DSP stimuli in
real time.

Peter didn't say real-time Unix is impossible, he said virtual memory
and real-time don't get along.
-- 
					-=] Ford [=-

"The number of Unix installations	(In Real Life:  Mike Ditto)
has grown to 10, with more expected."	ford@kenobi.cts.com
- The Unix Programmer's Manual,		...!sdcsvax!crash!elgar!ford
  2nd Edition, June, 1972.		ditto@cbmvax.commodore.com