See http://www-03.ibm.com/ibm/history/exhibits/storage/storage_1311.html
Please avoid duplicate posts of the same question
1.State the name of the removable disk which was invented in 1962.
2.Who invented the removable disk?
4 answers
If you need them for anything, I have Fortran programs for propeller design on punched cards in metal trays in the attic :)
I wonder if card readers are still available?
Not that I know of. I made copies on one of the last machines at MIT.