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BuyLicense this image for commercial use at Science and Society Picture Library
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Buy this image as a print
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Science Museum Group Collection
© The Board of Trustees of the Science Museum
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Science Museum, London|UCL
Arithmometer calculating machine with detachable lid by Thomas de Colmar, no.2034
Thomas De Colmar arithmoneter with detachable lid, no. 2034, 1880-1900. Charles X Thomas de Colmar invented his 'arithmometer' in 1820, which became the first commercially successful calculating machine in the 1860s. It could be used for addition, subtraction, division and mulitiplication. The mechanism was based on the stepped reckoner invented by Liebniz (1646-1716). Machines of this type were made well into the 20th century.
Arithmometer by Thomas de Colmar, no.2034
Invented by Charles Xavier Thomas de Colmar (1785-1870) around 1820, the arithmometer was the first commercially produced calculating machine. Machines like this one were used to compile health statistics and population figures. The machine could perform basic functions such as addition, subtraction, multiplication and division and was in use until the First World War.
Lid for arithmometer calculating machine by Thomas de Colmar, no.2034
