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Issue No. 01 - January-March (2008 vol. 30)
ISSN: 1058-6180
pp: 59-65
Denis Roegel , LORIA
ABSTRACT
This article presents Jean-Baptiste Schwilguć's 1844 adding machine, which was equipped with a number of unique features, in particular with what was apparently the first numerical keyboard.
INDEX TERMS
adding mechanism, carrying, keyboard
CITATION

D. Roegel, "An Early (1844) Key-Driven Adding Machine," in IEEE Annals of the History of Computing, vol. 30, no. , pp. 59-65, 2008.
doi:10.1109/MAHC.2008.1
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