Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!yale!cmcl2!adm!smoke!gwyn
From: gwyn@smoke.brl.mil (Doug Gwyn)
Newsgroups: comp.sys.apple2
Subject: Re: Multitasking on a II
Message-ID: <14705@smoke.brl.mil>
Date: 10 Dec 90 22:20:00 GMT
References: <10395@ucrmath.ucr.edu> <2433@unsvax.NEVADA.EDU> <10425@ucrmath.ucr.edu>
Organization: U.S. Army Ballistic Research Laboratory, APG, MD.
Lines: 12

In article <10425@ucrmath.ucr.edu> rhyde@ucrmath.ucr.edu (randy hyde) writes:
>All you need to do multitasking on a II is a timer interrupt.
>...  To truely implement multitasking on the II you need either
>memory management or specially written applications.

This is simply not true.  Timer interrupt is needed only for preemptive
scheduling, but multitasking does not have to be preemptive.  Memory
management offers protection for one task against bugs in another, but
this is more a convenience than a necessity.

The terminal I am typing this on is truly multitasking, and it uses
neither timer interrupts nor memory management.