Babbage then turned his attention to the Analytical Engine and completely abandoned the Difference Engine by 1842. Although never completed, it did improve the precision of Britain's machine-tool ...

Difference Engine No. 2 is a working ... Blaise Pascal (1623-1662) of France, who at the age of 18 invented a calculator that was also capable of addition and subtraction, had greater success ...

The famous and prolific nineteenth-century mathematician, engineer and inventor Charles Babbage (1791–1871 ... potential application of Charles Babbage's calculating engines, notably the Difference ...