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 finally built in 1871, the year Babbage died.

The Analytical Engine comprised an arithmetic logic unit ... who continued his father's work after he died in 1871. Before his passing, in 1854 Swedish inventor Georg Scheutz successfully built ...

1871. Babbage's revolutionary machines, the Difference Engine and the Analytical Engine, were the precursors to the computers that would shape the 20th and 21st centuries. Yet, during his lifetime ...