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From: StG@hummer.iupui.edu (Scott Griepentrog)
Newsgroups: comp.realtime
Subject: Re: Real-Time Operating Systems
Message-ID: <1990Jul20.230815.8195@hummer.iupui.edu>
Date: 20 Jul 90 23:08:15 GMT
References: <2931@zipeecs.umich.edu>
Organization: IUPUI University, Indianapolis, Indiana
Lines: 22

In article <2931@zipeecs.umich.edu> walden@dip.eecs.umich.edu (Eugene Marvin Walden) writes:
>
>   I was wondering if anybody knows of any other commercial real-time operating
>systems than the ones listed below:
>
>   1. VRTX (Ready Systems)
>   2. IRMX (Intel)
>   3. QNX (Quantum Software)
>   4. VxWorks (Wind River Systems)
>   7. Kadak
>
>   All of the above except #6 (Alpha) are really not true real-time operating
>systems, because there is no provision for handling deadlines. The Alpha op-
>erating system is state-of-the-art, but I don't know anything about its avail-
>ability. 

I supose that depends on your definition of real-time.  Could you
explain a little more about what this deadline handling feature is used
for, and why that is part of the definition of a real-time OS?

Just curious,
StG