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 ...

After his Difference Engine failed its test in 1833, Babbage started the design of the Analytical Engine in 1834. Developed in spurts due to lack of funds and constant redesign, a trial model was ...

Inspired by the Difference Engine when she first saw it in 1833, Lovelace subsequently worked with Babbage on the Analytical ...