IBM 602
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The IBM 602 Calculating Punch, introduced in 1946, was an electromechanical calculator capable of addition, subtraction, multiplication, and division. The 602 was IBM's first machine that did division
Electromechanical memory module from IBM 602 machine
Punched card
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A punched card is a stiff paper-based medium used to store digital information via the presence or absence of holes in predefined positions. Developed over the 19th to 20th centuries, punched cards we
A set of two 12-row/80-column punched cards (one blank, one used) from the mid-twentieth century
Carpet loom with Jacquard apparatus by Carl Engel, around 1860. The chain feed is on the left.
A worker changing Jacquard cards in a lace machine, September 1918. The pattern of the lace is dictated by the holes in the cards.
Woman operating the card puncher, c. 1940