Charles Cotterell
Key Points Sir Charles Cotterell (1615–1701) was an English courtier, translator, and suggested a calculating instrument. The user of Cotterell’s device would slide a window up and down to expose different parts of the times table. Robert Jole was the instrument maker. History of Computers and Computing, Calculating tools, Gadgets, Charles Cotterell Charles Cotterell’s Arithmetical Compendium In 1667, Sir Charles Cotterell (1615–1701), an English courtier and translator, suggested a calculating instrument, called Arithmetical Compendium (Instrument for Arithmetick)....