From: tmoran@acm.org
Subject: Re: Multitasking theory question
Date: Tue, 25 Jun 2002 04:48:54 GMT
Date: 2002-06-25T04:48:54+00:00 [thread overview]
Message-ID: <WCSR8.355$Ye2.71695719@newssvr13.news.prodigy.com> (raw)
In-Reply-To: GoRR8.133$7G4.15241@news.xtra.co.nz
> [Meridian Ada for DOS] Unfortunatly, the system was limited to just 15
> concurrent tasks.
I'm confused here. Did Meridian do 15 or whatever tasks preemptively,
or non-preemptively?
As to DOS, IIRC there were system calls explicitly to allow you to
run while a system call was blocking its caller. And device drivers
were written with an interrupt driven part and a part callable from
the app, so there was at least a nod toward multitasking.
next prev parent reply other threads:[~2002-06-25 4:48 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-06-20 20:46 Multitasking theory question Kai Schuelke
2002-06-20 20:53 ` Stephen Leake
2002-06-21 2:13 ` Ted Dennison
2002-06-24 3:18 ` AG
2002-06-24 4:13 ` tmoran
2002-06-24 4:24 ` AG
2002-06-24 7:33 ` Dale Stanbrough
2002-06-25 3:27 ` AG
2002-06-25 4:48 ` tmoran [this message]
2002-06-25 5:00 ` AG
2002-06-25 5:17 ` Darren New
2002-06-25 5:25 ` AG
2002-06-24 5:43 ` Mark Biggar
2002-06-24 6:48 ` AG
2002-06-24 15:14 ` Darren New
2002-06-24 16:19 ` Larry Kilgallen
2002-06-25 2:01 ` AG
2002-06-25 3:21 ` Darren New
2002-06-25 4:01 ` AG
2002-06-25 4:19 ` Darren New
2002-06-25 4:51 ` AG
2002-06-26 1:58 ` Darren New
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