Hollerith Card Sorter

Description:

During the 1880s the engineer Herman Hollerith devised a set of machines for compiling data from the U.S. Census. Hollerith's tabulating system included a punch for entering data about each person onto a blank card, a tabulator for reading the cards and summing up information, and a sorting box for sorting the cards for further analysis.

This third part of the system, the sorter, is shown on the right in the photograph. It is an oak box with 26 vertical compartments arranged in two rows. Each compartment has a brass cover that is held in place by an electric catch connected to the tabulator. The sorter is connected by a cable to the tabulator. Once a card is read by the tabulator, a compartment opens in the sorter, indicating where the card should be placed for further counting. The front and back sides of the sorter open so that one may remove stacks of cards from the compartments.

Date Made: 1890

Maker: Tabulating Machine Company

Location: Currently not on view

Place Made: United States: District of Columbia, Washington

Web Subject: MathematicsCensus, US

Subject:

See more items in: Medicine and Science: Mathematics, Computers & Business Machines, Tabulating Equipment

Exhibition:

Exhibition Location:

Credit Line: Gift of International Business Machines Corporation

Data Source: National Museum of American History

Id Number: MA.312897Accession Number: 171118Catalog Number: 312897

Object Name: sorter

Physical Description: metal (covers material)oak (cabinet material)rubber (cord material)Measurements: overall: 32 1/2 in x 30 1/2 in x 12 1/2 in; 82.55 cm x 77.47 cm x 31.75 cm

Guid: http://n2t.net/ark:/65665/ng49ca746a5-35e0-704b-e053-15f76fa0b4fa

Record Id: nmah_694412

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