The IBM 1401 (1960)
The replacement for Electric Accounting Machines (Tabulators)






Access mechanism for 1405 disk drive.    
It would take a few DAYS to replace a disk if there was a head crash.

Here is a sample of SPS, the Symbolic Programming System for the 1401

Other 'languages' for the 1401 included: RPG (Report Program Generator) and FARGO (Fourteen-oh-one Automatic Report Generating Operation)