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Tabulators
Adjusting a tape storage device
An advertisement for ICT
Hollerith's mechanical tabulator, 1931
A room full of women Card Punch Operators working
A woman operates one of 12 IBM computers in use
Herman Hollerith (1860-1929), American inventor ?
Herman Hollerith (1860-1929), American inventor ?
Calculating machine designed by French mathematician ?
Mechanisms of Gottfried Leibniz's calculator ?
Social Security Administration clerks seated ?
Social Security Administration clerk punching ?
Clerks at the Farm Credit Administration ?
Old and new computers at the Census bureau ?
Women working with punch cards at an early ?
Mid-century state of the art IBM computers ?
The new Social Security Administration was ?
Man working with punch cards in an early ?
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