• 1958

Hardware Description

The IBM 632 was a valve-and-relay driven basic (very basic) accounting machine, introduced in 1958, that was available in seven different models. It consisted of an IBM Electric typewriter and at least a punched card unit (like the IBM 024) that housed the "electronics" in two gates (a relay gate and an electronic gate). Some machines also had a card reader unit (like the IBM 026). A small core memory provided storage for 8 numeric 12 digit words.