machine is dated to 1784), but he was unable to obtain funding to progress with the idea.

Charles Babbage's difference engines

Charles Babbage began to construct a small difference engine in and had completed it by 1822 (Difference Engine 0). He announced his invention on 14 June 1822, in a paper to the Royal Astronomical Society, entitled "Note on the application of machinery to the computation of astronomical and mathematical tables". This machine used the decimal number

1.Previous
3.Next