Talk:OS 2200

"There were earlier 1100 systems going back to the 1101 in 1951, but the 1108 marked the introduction of the first 1100 Series computer designed for a modern operating system." This sentence could use more detail by way of explanation. Peter Flass (talk) 11:33, 21 November 2013 (UTC)

This page's "Exec 8" section gives more details of EXEC 8 than does the UNIVAC EXEC 8 page. Should whatever in that page is of interest be moved to the "Exec 8" section of this page, with the UNIVAC EXEC 8 page then just redirecting to that section? Guy Harris (talk) 01:03, 22 November 2014 (UTC)

I agree, so I've merged the text, but not the "See also" references or the summary box. Sorry, I don't know how to redirect from the UNIVAC EXEC 8 page, so I'll leave that to others.

Dr.glen (talk) 23:31, 27 May 2015 (UTC)

Done. Guy Harris (talk) 19:27, 28 May 2015 (UTC)

It is noted with MAPPER on the timeline. Its history with OS portability is needed (after the Interdata/Perkin-Elmer port). And probably when the last Unix 1100 system was installed. ~2025-43315-73 (talk) 19:52, 27 December 2025 (UTC)

If by "the timeline" you're referring to the "Software Genealogy" chart, the only reference I see to "Unix" there is an entry labeled "Unix MAPPER'. It's followed by an entry for "PC MAPPER", which is followed by an entry for "MAPPER for Windows". That strongly suggests that "Unix MAPPER" is a port of MAPPER to Unix, not a port of Unix, so it'd belong in a page for MAPPER, not this page - and, in fact, that page mentions a Unix version.

As for the Unix port, the Bell Labs "UNIX Operating System Porting Experiences" paper says "NOTE: * This is typically the case. However, in the case of the UNIVAC 1100 Series the UNIX operating system runs as a task on top of the resident operating system. Therefore, the target and host are the same processor.", so presumably this was a UNIX environment running on EXEC 8/OS 2200, and it might be relevant to one or the other of those OS pages. Guy Harris (talk) 22:49, 27 December 2025 (UTC)

The paper says, of that port:

The UNIX system for the UNIVAC 1100 Series [6] runs on Sperry 1100/60 and 1100/80 processors. These processors have similar but not identical instruction sets. They run time-sharing, batch, transaction, and communications real-time programs, simultaneously, if desired, under the control of the OS 1100 operating system (commonly called EXEC). Each processor type can operate in configurations of from one to four Central Processing Units (CPUs) with one to four 1/0 processors (not all combinations are supported). Processor types cannot be mixed in a single configuration.

The UNIX system for the UNIVAC 1100 series was built as an integrated development environment for transactions that run directly on EXEC. Unlike most other implementations, therefore, it runs not directly on the hardware but as a collection of user-level activities under control of EXEC. These obtain services that would normally be provided by device drivers, and some process creation and management services from EXEC. Any configuration supplied by Sperry, including multiprocessor ones, can run the UNIX system.

and EXEC 8 redirects to OS 2200 § Exec 8, so this would presumably be the place to put it. Guy Harris (talk) 23:01, 27 December 2025 (UTC)