Message-ID: <002801bed862$939eb900$0100007f@sandrajo>
From: "Christopher Nelson" <neverjaden AT yahoo DOT com>
To: <djgpp AT delorie DOT com>
References: <Pine DOT SUN DOT 3 DOT 91 DOT 990725112051 DOT 27488P-100000 AT is>
Subject: Re: **MAKING OS**
Date: Tue, 27 Jul 1999 13:01:09 -0600
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Reply-To: djgpp AT delorie DOT com


----- Original Message ----- 
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
To: Christopher Nelson <neverjaden AT yahoo DOT com>
Cc: <djgpp AT delorie DOT com>
Sent: Sunday, July 25, 1999 2:21 AM
Subject: Re: **MAKING OS**


> 
> On Fri, 23 Jul 1999, Christopher Nelson wrote:
> 
> > it used cooperative multitasking because it couldn't pre-empt DOS.
> 
> Not true.  Windows 3.X uses cooperative multitasking between Windows
> programs, but Windows was always preemptively multitasking between
> different DOS boxes.  The problem or preempting DOS was solved a long,
> long time ago.
> 

i meant, couldn't pre-empt the interrupt services/etc.

    -={C}=-