Punch cards, also called Hollerith cards after IBM founder Herman Hollerith, were the forerunner of the computers that IBM is famous for today. These cards stored information in holes punched in the rows and columns, which were then “read” by a tabulating machine. The system worked like a player piano . First designed to track people and organize a census, the Hollerith system was later adapted to any tabulation or information task.
From the first moments of the Hitler regime in 1933, IBM used its exclusive punch card technology and its global monopoly on information technology to organize, systematize, and accelerate Hitler’s anti-Jewish program, step by step facilitating the tightening noose. The punch cards, machinery, training, servicing, and special project work, such as population census and identification, was managed directly by IBM headquarters in New York, and later through its subsidiaries in Germany, known as Deutsche Hollerith-Maschinen Gesellschaft (DEHOMAG), Poland, Holland…
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