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The World’s Smallest Mechanical Parallel Calculator: Discovery of Original Drawings and Patent Documents from the 1950s in Switzerland

Abstract : The Austrian engineer Curt Herzstark invented the world-renowned mechanical pocket calculator Curta. The books and the papers on the history of computing mention two models, Curta 1 and Curta 2. In November 2015 original drawings and patent documents on a multiple Curta were discovered in Switzerland. This device is supposed to be the world’s smallest mechanical parallel calculator.
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https://hal.inria.fr/hal-01620132
Contributor : Hal Ifip <>
Submitted on : Friday, October 20, 2017 - 11:06:59 AM
Last modification on : Thursday, May 27, 2021 - 1:54:06 PM
Long-term archiving on: : Sunday, January 21, 2018 - 12:54:57 PM

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Herbert Bruderer. The World’s Smallest Mechanical Parallel Calculator: Discovery of Original Drawings and Patent Documents from the 1950s in Switzerland. IFIP International Conference on the History of Computing (HC), May 2016, Brooklyn, NY, United States. pp.186-192, ⟨10.1007/978-3-319-49463-0_13⟩. ⟨hal-01620132⟩

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