Article View: comp.os.os2
Article #142Re: Why is OS/2 a memory hog?
From: Martin McKendry
Date: Wed, 08 Nov 1989 17:15
Date: Wed, 08 Nov 1989 17:15
40 lines
2538 bytes
2538 bytes
In article <89307.092707GIAMPAL@AUVM.BITNET> GIAMPAL@AUVM.BITNET writes:
>You said that OS/2 is small for its power. I'm naive about what it offers at
>a technical level, so I'd like to know what it's power is. All that the
>press about it has mentioned is that it multi-tasks, and that is NO reason
>to require such a large amount of memory. I really would like to hear
>a technical discussion of what it offers. Nothing I have read (which isn't
>much) has mentioned if it has virtual memory or protected memory, etc...
> What about the IPC support that it has? Is it easy to use? What about
>spawning child processes, etc...
You need to read, or at least peruse "Inside OS/2", by Gordon Letwin,
Microsoft Press, 1988, ISBN 1-55615-117-9, $19.95 at a store year
you. I got mine at B. Dalton.
OS/2 has almost everything that Unix System V Release 4 has, and then a
few things. It is very extensive, and in general contains the most
current version of whatever feature you want. For example, it has more
support for process management -- lightweight processes & semaphores
etc -- than most versions of Unix.
Discussions about OS/2 tend to be a little religious, and tend to be
based on previous experience with MS-DOS. OS/2 is a real operating
system, just as current versions of Unix are. Its 'power' is just
what you would expect -- no more or less. However, when contrasted
with MS-DOS, it looks very powerful, and this tends to dominate
discussions.
In fact, OS/2 has so many features derived from the Unix world, that
you have to wonder if royalty avoidance didn't play a part in the
decision to build a new operating system. (Not that there is anything
wrong with learning from Unix: any competant engineer studies the current
state of the art before building something new).
--
Martin S. McKendry; FileNet Corp; {hplabs,oliveb,spsd,zardoz}!felix!martin
Strictly my opinion; all of it
Technical Details
Message-ID:
<124944@felix.UUCP>Path:
arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!gem.mps.ohio-state.edu!usc!henry.jpl.nasa.gov!elroy.jpl.nasa.gov!peregrine!ccicpg!felix!martinReferences:
<89304.173824GIAMPAL@AUVM.BITNET> <3056@ccncsu.ColoState.EDU> <89307.092707GIAMPAL@AUVM.BITNET>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!gem.mps.ohio-state.edu!usc!henry.jpl.nasa.gov!elroy.jpl.nasa.gov!peregrine!ccicpg!felix!martin From: martin@felix.UUCP (Martin McKendry) Newsgroups: comp.os.os2 Subject: Re: Why is OS/2 a memory hog? Message-ID: <124944@felix.UUCP> Date: 8 Nov 89 17:15:26 GMT References: <89304.173824GIAMPAL@AUVM.BITNET> <3056@ccncsu.ColoState.EDU> <89307.092707GIAMPAL@AUVM.BITNET> Sender: daemon@felix.UUCP Reply-To: martin@felix.UUCP (Martin McKendry) Organization: FileNet Corp., Costa Mesa, CA Lines: 40