Newsgroups: comp.realtime,comp.os.qnx,comp.robotics
Path: cantaloupe.srv.cs.cmu.edu!rochester!udel!news.mathworks.com!yeshua.marcam.com!charnel.ecst.csuchico.edu!csusac!csus.edu!netcom.com!valentin
From: valentin@netcom.com (Valentin Pepelea)
Subject: Re: Real-time systems:  Windows-NT or QNX
Message-ID: <valentinCxyr2H.8Ip@netcom.com>
Organization: Netcom Communications, Santa Clara, CA
References: <tsikesCxtpK5.ICM@netcom.com> <HBLTBAAM@gwdu03.gwdg.de> <380va5$hqs@nyx10.cs.du.edu>
Date: Thu, 20 Oct 1994 08:47:05 GMT
Lines: 24
Xref: glinda.oz.cs.cmu.edu comp.realtime:7290 comp.os.qnx:2315 comp.robotics:14612

In article <380va5$hqs@nyx10.cs.du.edu> mross@nyx10.cs.du.edu (mike ross) writes:
>I've been following this thread on RT OSs with great interest.  Noone has 
>mentioned LynxOS as a RT OS on the Intel platform.  My project sorta
>specifies LynxOS on a Pentium (not even available yet), yet this group
>seems to really like QNX.  What am I in for?  My application is robot
>control, although the tight servo apps might be run on a DSP.

Both LynxOS and QNX are Posix compliant, Unix-like real-time operating systems,
but unlike QNX, LynxOS does not scale down so easely. At a size of 1Mb for the
kernel alone, few embedded systems can afford that kind of memory bloating.
LynxOS on the other hand is available for a variety of processors, while QNX
is limited to the 80x86 line.

As to this group really liking QNX, much of the hard core information we are
getting about that kernel is coming from one of their engineers. QNX Software
Systems is one of the rare companies that has figured out that maintaining a
presence on the Internet pays off.

Valentin
-- 
"An operating system without virtual memory      Name:      Valentin Pepelea
 is an operating system without virtue."         Phone:     (408) 249-6610
                                                 Office:    (408) 486-5558
                     - Ancient Inca Proverb      Internet:  valentin@netcom.com
