IBM 407
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The IBM 407 Accounting Machine, introduced in 1949, was one of a long line of IBM tabulating machines dating back to the days of Herman Hollerith. It had a card reader and printer; a summary punch cou
A 407 at U.S. Army's Redstone Arsenal in 1961.
IBM 407 (left) with IBM 519 (on right).
Tabulating machine
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The tabulating machine was an electromechanical machine designed to assist in summarizing information stored on punched cards. Invented by Herman Hollerith, the machine was developed to help process d
IBM 407
…The IBM 407 Accounting Machine, introduced in 1949, was one of a long line of IBM tabulating machines dating back to the days of Herman Hollerith. It had a card reader and printer; a summary punch could be attached. Processing was directed by a control…
Hollerith 1890 tabulating machine with sorting box.
Hollerith punched card
IBM Type 285 tabulators in use at U.S. Social Security Administration circa 1936
Early IBM D11 tabulating machine, with covers removed