On 14/01/2025 16:28, Jon Elson via cctalk wrote:
On 1/14/25 03:50, ben via cctalk wrote:
On 2025-01-13 6:55 p.m., Joseph S. Barrera III via cctalk wrote:
I would expect universal condemnation for anyone who would ask if FLACC
were designed for floppies.
Did mainframes ever have a floppy option?
Do any copies exist and what was the meduium?
IBM 370's had an 8" floppy, but I doubt it was accessible to the OS or
user programs. It was used to load main firmware, emulators and
diagnostics. IBM must have had something at the factory to make those
floppies.
Jon
There were definitely floppy drives in a 3174 (the controller for the
3270 terminals). I never found out what they were for! They were
attached to a 4381 that was running an old 370 assembler program (the
4381 being the last CPU that was was 370 code compatible, or so I was
told). If you're a legacy IBM person, this involved PAMs, and you
probably know which software this is :-)
