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Hollerith Automatic

Hollerith Automatic Horizontal Sorter

Hollerith Automatic Horizontal Sorter
The first 20 of Herman Hollerith's automatic sorters arrived at the U.S. Census Office in October 1901. The horizontal units were equipped to sense the hole position in a card by activating a magnet, so that the card, which traveled through the machine on a belt, was steered by a guide channel into a particular pocket. The machine could sort cards into any of 12 pockets. Though crude by comparison, the sorters nevertheless bear a distinct resemblance to those used to sort bank checks today.