My mother used to work as a keypunch operator for one of the 360 series. (I think it was a 360, though I was very young at the time, I may very well be mis-remembering.) I remember (must have been sometime in '73) her loading up the disk pack with the program and allowing me play 3-D tic-tac-toe during idle times.

They upgraded to a computer made by some other company a couple of years later that (gasp) had a gigantic 5-meg disk capacity. Huge foot and a half multi-level disk platters. When they scrapped that system, I managed to snarf one of those disk packs. Probably not many places in the world even has the capability of reading anything off that disk, even if the media is still readable, but it's an interesting momento to ancient computer days.