US Census Bureau announces results using Herman Hollerith's machine
16th August 1890
The US Census Bureau announces the U.S. population of 62,622,250, determined for the first time by using an automated method, the Hollerith Census Machine.
The Hollerith machine sorted returns by completing an electrical circuit wherever a hole existed in a punch card. It could process almost 10 times the number of census data compared to a human clerk.
Census workers used the Punch Pantograph to enter data, as seen in the image on the left.
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