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Electromechanical Computer Component, ASSC Mark I

Electromechanical Computer Component, ASSC Mark I

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This is a component of the IBM Automatic Sequence Controlled Calculator (ASCC), known otherwise as the Harvard Mark I. The electromechanical assembly contains a commutator with two plastic pieces, numbered around a circular opening to denote contacts. The numbers are the integers from 0 to 9. In addition the object includes a gear, contacts, a clutch and brushes.
Currently not on view
Object Name
Computer Component
Electromechanical Computer Component
Date made
Harvard University
place made
United States: Massachusetts, Cambridge, Harvard University
overall: 2.9 cm x 7.5 cm x 8 cm; 1 1/8 in x 2 15/16 in x 3 1/8 in
ID Number
accession number
catalog number
Credit Line
Gift of President and Fellows of Harvard University
See more items in
Medicine and Science: Mathematics
Computers & Business Machines
Data Source
National Museum of American History
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