Charles Babbage Dead
Designed the Difference and Analytical Engines — the first general-purpose programmable computer, never completed in his lifetime.
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Designed the Difference Engine (1822) and the Analytical Engine (1837) — a general-purpose mechanical computer with a store, a mill, and punched-card control that was never built in his lifetime.\n\nThe Science Museum built Difference Engine No. 2 to his drawings in 1991; it works. Computing's first great unrealized design.