From: "Matthias Paul" <MPAUL AT ibh DOT rwth-aachen DOT de>
Organization:  IBH, RWTH-Aachen
To: opendos AT delorie DOT com
Date:          Thu, 10 Apr 1997 15:57:59 GMT+0100
Subject:       X/GEM, FlexOS
Reply-to: Matthias DOT Paul AT post DOT rwth-aachen DOT de
Message-ID: <93EB115E98@ibh.rwth-aachen.de>


Hi!

Surfing the web, I have found an old (German) announcement of 
DR Multiuser DOS 5.1 from 1992.  In this announcement they spoke 
of the real-time operating system DR FlexOS and a graphically 
environment named DR X/GEM v2.0 with support for 16- and 32-bit 
applications with 4GB address space, which was under development
at that time.  I thought this might be interesting to some of you...

Since the real-time operating system IMS REAL/32 7.50+ derived from 
IMS Multiuser DOS 7.xx which derived from DR Multiuser DOS 5.1, I was 
wondering, if FlexOS and REAL/32 could be somewaht compared in this 
respect.  Although they spoke of version 2.0, this is the first time, 
that I saw the product name 'X/GEM' at all (and GEM 3.1 was in 1989).
Further, I was interested if Caldera also owns the sources of FlexOS 
and X/GEM (AFAIK, they did not mention them in their announcements).

Anybody having additional information?

Bye,

 Matthias

 
Errata:

Since I'm trying to clear the confusion concerning the former 
DRI operating systems and their facilities (including their 
successors), not to introduce new rumours, I have to correct myself: 
When I spoke of the REAL/32 API some days ago, it was Concurrent 
Control's CCI Multiuser DOS 7.22 Gold, where Novell holds some 
copyrights up to 1996 (apparently in the NetWare area), but it 
was IMS REAL/32 with it's IMSCDEX.EXE driver, that definitively 
is a derivation of the NWCDEX.EXE 1.00 driver from Novell DOS 7 betas.


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