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From: tdonahue@bbn.com (Tim Donahue)
Newsgroups: comp.realtime
Subject: Re: Summary of Real-Time Operating Systems
Message-ID: <58389@bbn.BBN.COM>
Date: 24 Jul 90 17:13:19 GMT
References: <2946@zipeecs.umich.edu>
Sender: news@bbn.com
Reply-To: tdonahue@bbn.com (Tim Donahue)
Organization: BBN Advanced Computers, Inc.
Lines: 30
In-reply-to: walden@dip.eecs.umich.edu (Eugene Marvin Walden)

In article <2946@zipeecs.umich.edu>, walden@dip (Eugene Marvin Walden) writes:
>
>   First off, I really would like to thank all who replied. I am amazed at the
>number of real-time operating systems out there. Here is a summary of the 
>replies I received:
>
>   1. Regulus           (Alcyon)

<more operating systems deleted>

>   8. pSOS              (Software Components Group)

<left in because we have it on the TC2000 #) >

<more operating systems deleted>

There are actually at least two other systems that have not been
mentioned, one that is still for sale (I think) and one that is not.
The first, RT-11, is/was sold by Digital and runs on PDP-11 computers.
I'm amazed that no one has mentioned it...

The other, MSOS (short for Mass Storage Operating System) was developed
by Control Data for their real-time minicomputer family.  Installed
systems running MSOS contol oil refining and transportation in New
Jersey, Texas, and Delaware, bill parking lot customers in the New York
area, and control electric power transmission in many parts of the
United States, among other things.

Cheers,
Tim