[inforoots] CDC operating system for CDC 6000 series systems

Herb Schwetman Herb.Schwetman at Sun.COM
Thu Mar 2 15:10:42 PST 2006


This is in response for the person asking about the CDC OS named TOOS.
I cannot answer that question per se, but I can offer some info on early 
CDC operating systems.

I was a grad student at The University of Texas in Austin, starting in 1967.
We had sn 17 (I think) CDC 6600, which had arrived in 1966.

I was told that there was a basic operating system developed at by the 
engineers at Chippewa Falls for the early 6600's (for testing and 
debugging).
A search of Google suggests that this OS was named CHIPPEWA. 
(http://www.csee.wvu.edu/~jdm/classes/cs258/OScat/batch.html).

There was an official OS being developed at a CDC site in Los Angeles; 
it may have been named SIPROS.
Anyway, the CDC User Group (VIM) met in Geneva (CERN) and voted to kill 
the LA system, which CDC did.
(This was back in the days when user groups had some real power).

CDC went back to the basic system, added a linking loader, etc. and this 
became the official system,  SCOPE 2.0.
According to the Google reference, SCOPE stood for Supervisory Control 
of Program Execution.

Then SCOPE 3.0 came along.

At the UT, we stuck with the original SCOPE 2.0, adding features etc.  
The UT system was eventually called UT2D.

The system that Dave Cahlander and Greg Mansefield created was called 
MACE (but Dave denied that it stood for Mansefield and Cahlander 
Experimental).

A number of sites picked up MACE, including Purdue University (where I 
was starting in 1972).

At some point, a time sharing company in Kansas City, bought a bunch of 
CDC 6000 systems, to offer a high performance time sharing service;
Part of the deal was a new OS, based on MACE.  The name of this system 
was probably KRONOS 
(http://www.cbi.umn.edu/collections/inv/cdc/histtimeline.html)

At some point, CDC named their OS for the later Cyber series of systems 
NOS as in NOS/BE (batch environment) and NOS/xxx for time sharing.

The earlier mentioned web page does mention "Tape Scope 2", and
 says it was "Tape based OS derived from SCOPE for the CDC System 17. 
Early 1970s"
If you can get TOOS for this, then maybe .....

I hope this helps.

Herb Schwetman









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