Fred Cisin wrote:
Microsoft used to do some/all? of their development using cross-compilers
on PDPs. See Paul Allen's pdpplanet.com
If there isn't any more information available yet other than the
juxtaposition of "PDP-11" and "OS/2", then perhaps this is a backup
of development files (maybe even source code?) Or maybe it's
just bookkeeping files of resources allocated to the projects.
Well, the OP doesn't state where the tape *originally* came from - Dan, is it
even known to be from within DEC/MS/IBM or anyone else directly involved with
OS/2? If not, it's also possible that someone happened to be using TK50 media
(via whatever means) to back up their personal data, and backed up either
their installation media or a copy of their OS/2 install tree.
Nothing can be ruled out as of yet, of course... (and it would be nice if it
*was* a 'forgotten OS' :-)