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- Path: sparky!uunet!uunet.ca!canrem!dosgate![bill.dehaan@canrem.com]
- From: "bill dehaan" <bill.dehaan@canrem.com>
- Newsgroups: comp.os.os2.advocacy
- Subject: os/2 and nt
- Message-ID: <1992Aug18.2712.3827@dosgate>
- Date: 18 Aug 92 13:46:38 EST
- Reply-To: "bill dehaan" <bill.dehaan@canrem.com>
- Distribution: comp
- Organization: Canada Remote Systems
- Lines: 56
-
- In message <2986#accucx.cc.ruu.nl>, nevries@accucx.cc.ruu.nl (Nico E de
- Vries) writes:
-
- BdH>Actually, no. Given the problems that OS/2 has with supporting backlevel
- BdH>OS (Windows, DOS) in addition to its own code, I'd say that the efforts
- BdH>are probably about equal. OS/2 has the advantage in terms of the amount
- BdH>of existing code; NT has the advantage of a considerably cleaner design
- BdH>without having to maintain the campatability with other systems that
-
- NEDV>NT is SUPPOSED to become DOS, Windows and OS/2 1.3 (no PM) compatible. I
- NEDV>fail to understand the advantage of less compatibility than OS/2 you
- NEDV>mention. I have to admit MS limits itself to the to 100 Windows and DOS
- NEDV>apps but that leaves enough problems to solve.
-
- The advantage (as such) is that support for OS/2 1.3 was designed into
- the NT system, unlike OS/2, where support for Windows 3.0 had to be
- reverse engineered. That's why Windows support in OS/2 goes through
- seperate screen groups, has seperate video drivers, etc. The Windows
- support isn't part of the kernel design. Backlevel compatability was was
- part of the NT kernel design, apparently. You'd have to ask Letwin or
- one of the NT gurus for more details, though.
-
- BdH>OS/2 does. Obviously, OS/2 was here first. But I'd say that NT is pinned
- BdH>at about a year behind OS/2. Given that NT is considerably more
- BdH>ambitious, I'd put them at about an equal footing.
-
- NEDV>OS/2 is not standing still either. The Mach kernel planned to be used
- NEDV>will give it more platforms than NT, stuff like B2 security, multiprocessin
- NEDV>(symetric I believe) and POSIX compliance are in the queue as well. That
- NEDV>does make OS/2 as ambitious as OS/2 I think.
-
- I spoke with Bob Blair of IBM (head of their OS2POSIX group)
- specifically about the point of Posix conformance. IBM's official
- position is that it is a "future direction". That could easily mean
- 1997. IBM has _no_ official plans for Posix support within the short
- term.
-
- BdH>And from what we've seen of NT, porting an existing Win3[01] application
- BdH>to it is no worse or better than porting the same application to OS/2.
-
- NEDV>Correct. In both cases (in a while, not now) recompilation will be possible
- NEDV>In both cases utilizing native features (especially Cairo/WPS) will take
- NEDV>some rewriting.
-
- Writing portable code that supports specific OS features has always had
- this problem, though. It isn't unique to OS/2 or NT.
-
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