Before Torchi and Schwilgué, there was White

Reprinted from IEEE Annals of the History of Computing, Institute of Electrical and Electronics Engineers, 2016, 38 (4), pp.92-93International audienceThis brief note pushes further back the invention of key-driven calculating machines. Until recently, it was thought that the first such machine was Du Bois D. Parmelee's in 1850. Then, notice was made of Jean-Baptiste Schwilgué's machine (1844), then of Luigi Torchi's (1834), and now of James White's (1822).(Reprinted from IEEE Annals of the History of Computing, Institute of Electrical and Electronics Engineers, 2016, 38 (4), pp.92-93

Before Torchi and Schwilgué, there was White

Reprinted from IEEE Annals of the History of Computing, Institute of Electrical and Electronics Engineers, 2016, 38 (4), pp.92-93International audienceThis brief note pushes further back the invention of key-driven calculating machines. Until recently, it was thought that the first such machine was Du Bois D. Parmelee's in 1850. Then, notice was made of Jean-Baptiste Schwilgué's machine (1844), then of Luigi Torchi's (1834), and now of James White's (1822).(Reprinted from IEEE Annals of the History of Computing, Institute of Electrical and Electronics Engineers, 2016, 38 (4), pp.92-93