Computers
posted by Kavita .
1.State the name of the removable disk which was invented in 1962.
2.Who invented the removable disk?

See http://www03.ibm.com/ibm/history/exhibits/storage/storage_1311.html
Please avoid duplicate posts of the same question 
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.
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