Charles Babbage Unveils Difference Engine (opens in new tab)

June 14, 1822 In a paper to the Royal Astronomical Society, Charles Babbage unveils his design for a machine he called the Difference Engine, the first example of a mechanical computing machine. The British government funded the building of a Difference Engine, which Babbage never actually completed. However, Babbage’s design for the Difference Engine and… is original content of .