For some handy clarification - some of the tapes I saw seemed to be operating system tapes for the MAX 32 computer.
Labeled things like "MAX 32 O/S & SUPPORT PART 2 OF 2" and "MAX 32 GLS -C COMPILER" 1600 BPI, 9 track. Also has MODCOMP copyrights, leading to this line of machines: https://en.wikipedia.org/wiki/Modcomp So likely the Modcomp Classic. Copyright dates on the labeling indicated 1981. So it would have been the latest and greatest OS for this system at the time. So this would have been the OS, according to that wiki article, controlling space shuttle launch complex. Also tangentially related (Modcomp IV, their first 32 bit computer) to the OS running PAVE PAWS initially.
