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#21
Even more off topic I remember using 8" floppy drives in the 1970s (about 0.5 MB capacity?) On a DEC PDP 11/34 I also used RL01/02 removable having huge 5-10MB capacity. Processor memory was very limited requiring programming to use overlays to specify what routines were held in memory. Around 1980 I was doing image processing research. A single 256kb frame store cost £30k then and occupied a full 19" equipment rack!
I still have my stack of 3.5" installation floppy drives for Windows 95 and later variants.
PL/1!! Me too.
Started with the F Compiler (with punch cards), then the Checkout and Optimizing Compiler pair (using TSO), then PL/C, the Cornell implementation. Not that I really need it but I would love to have a free or low cost PL/1 compiler that runs under Win 10 64. I just wish that companies that still have PL/1 compilers provide low-cost options for "older adults" like me who just want to do some hacking.