Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!rochester!pt.cs.cmu.edu!andrew.cmu.edu!rh1m+
From: rh1m+@andrew.cmu.edu (Rudi Jay Halbright)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Os/2, Dos and X-windows
Message-ID: <sYe4Tuy00WB3IT9FYg@andrew.cmu.edu>
Date: 28 Jun 89 03:37:30 GMT
Organization: Social and Decision Sciences, Carnegie Mellon, Pittsburgh, PA
Lines: 23

pajerek@isctsse.UUCP (Don Pajerek) writes:

>In article <25112@shemp.CS.UCLA.EDU> gblee@CS.UCLA.EDU () writes:
>>Many of you requested summary of Os/2, Dos and X-window.
>>tasks in the background when you have the DOS session in the
>>foreground, but MS-windows-like, it will suspend the DOS session to put
>>an OS/2 task in the foreground.

>No.  When the DOS Compatibility Box is brought to the foreground, all OS/2
>programs are suspended.  This is because the DOS program must execute in
>real mode, while OS/2 programs use protected mode.  This eliminates the
>possibility of multitasking mixed DOS and OS/2 programs.

>386 machines can multitask DOS applications by using the 'virtual 8086'
>mode of the 386 processor.  However, you cannot run OS/2 programs in
>this environment.

I don't know about your version of OS/2 but on the version I am running
(OS/2 1.0 SE) my OS/2 sessions continue to run in the background when
I switch to the dos compatibility box!  Where did you get your info?

-Rudi Halbright
 rh1m@andrew.cmu.edu