Hollerith pantographic card-punching machine

Hollerith pantographic card-punching machine

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Credit: LIBRARY OF CONGRESS/SCIENCE PHOTO LIBRARY

Restrictions: Editorial use only

Caption: Hollerith pantographic card-punching machine. A woman uses a pantographic hole-punching machine to punch holes in cards. The cards represent data input for a electromechanical data processing machine (forerunner of the computer). Herman Hollerith's Pantographic Card Punch was developed for the 1890 US census. Prior to 1890, cards were punched using a train conductor's ticket punch. The Pantographic punch allowed accurate placement of holes across the whole card. A skilled Pantograph operator could punch 700 cards per day. Photographed between 1915 and 1923.

Release details: Model release not available. Property release not available.

Keywords: 1900s, 1915, 1920s, 20-30 years, 20s, 20th century, adult, american, black-and-white, card puncher, caucasian, computer, computing, data, data entry, data processing, electromechanical, equipment, female, historical, history, hole puncher, hollerith machine, hollerith pantographic card-punching machine, human, information management, machine, monochrome, office, operative, operatives, pantograph, people, person, processing, punch, punch card, punched cards, tabulator, technological, technology, unit record, united states, us, usa, white, woman, women, worker

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