MOS operating System?

From: Joe <rigdonj_at_cfl.rr.com>
Date: Fri Sep 5 16:20:00 2003

Went to a surplus store today and found a package that said that it was
"MOS Operating System" and that it was a multi-user system and that it was
MS-DOS compatible. Does anyone know anything about it? I've never heard of
it before. The package was sealed so I couldn't open it to read any details.

    Joe
Received on Fri Sep 05 2003 - 16:20:00 BST