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Article #433

Re: Dos drivers under Windows

#433
From: Richard Hancock
Date: Thu, 16 Apr 1992 10:23
18 lines
1176 bytes
/ hpopd:comp.windows.ms.programmer / axb@cse.nd.edu (Arindam Banerji) / 11:46 am  Apr 15, 1992 /

>[stuff deleted] This is not as bad as it
>seems, since in enhanced mode the Windows vitual 
>machine is non-premptable, although the DOS boxes are.

I think I know what you mean, but just in case anyone else
is confused, what I think you mean (to say) is that
pre-emption occurs at the virtual machine level but not at
the Windows app level.

In other words, virtual machines are
pre-emptively multitasked (by default) but Windows apps are
only ever non-pre-emptively multitasked (ie. a Windows app
must yield the processor for another Windows app to run).

While DOS apps each run in their own virtual machine, all
Windows apps run in the same virtual machine.
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Message-ID: <266570029@hpopd.pwd.hp.com>
Path: arc1-ca.pugleaf.net!sparky!uunet!usc!sdd.hp.com!hpscdc!hplextra!otter.hpl.hp.com!hpopd!richardh
References: <1992Apr15.063338.11850@cs.wayne.edu>

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From: richardh@hpopd.pwd.hp.com (Richard Hancock)
Date: Thu, 16 Apr 1992 10:23:25 GMT
Subject: Re: Dos drivers under Windows
Message-ID: <266570029@hpopd.pwd.hp.com>
Organization: The Duffer of St. George
Path: arc1-ca.pugleaf.net!sparky!uunet!usc!sdd.hp.com!hpscdc!hplextra!otter.hpl.hp.com!hpopd!richardh
Newsgroups: comp.windows.ms.programmer
References: <1992Apr15.063338.11850@cs.wayne.edu>
Lines: 18