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An Early (1844) Key-Driven Adding Machine

Denis Roegel 1 
1 MOSEL - Proof-oriented development of computer-based systems
INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
Abstract : This article presents Jean-Baptiste Schwilgué's 1844 adding machine, which was equipped with a number of unique features, in particular with what was apparently the first numerical keyboard.
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Submitted on : Friday, October 31, 2008 - 5:42:55 PM
Last modification on : Friday, February 4, 2022 - 3:22:09 AM

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Denis Roegel. An Early (1844) Key-Driven Adding Machine. IEEE Annals of the History of Computing, Institute of Electrical and Electronics Engineers, 2008, 30 (1), pp.59-65. ⟨10.1109/MAHC.2008.1⟩. ⟨inria-00336086⟩



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