Issue No.01 - January-March (2008 vol.30)
Denis Roegel , LORIA
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/MAHC.2008.1
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.
adding mechanism, carrying, keyboard
Denis Roegel, "An Early (1844) Key-Driven Adding Machine", IEEE Annals of the History of Computing, vol.30, no. 1, pp. 59-65, January-March 2008, doi:10.1109/MAHC.2008.1