User:Robert W King/Sandbox

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Revision as of 12:50, 21 May 2007 by imported>Robert W King (→‎Test of timeline)
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Test of timeline

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300 B.C. - 500 A.D. Roman Hand Abacus Circla 1200 A.D. → modern Chinese Abacus ?? A.D. → the Codex Madrid written by Leonardo Da Vinci 1642 Pascal invents the Pascaline 1821 Babbage creates the Difference Engine No. 1 ?? Babbage creates the Analytical Engine 1884 Hollerith's Electric Tabulating System 1890 Hollerith improves his system by adding a keyboard 1936-1938 Konrad Zuse creates the Z1 1936-1939 Z2 1939-1941 Z3 1943 First Colossus prototype by Tommy Flowers 1944 Construction of ASCC, or Harvard Mk I by Howard Aiken 1946 ENIAC construction complete Orders from Churchill to destroy all 10 Colossus machines 1951 UNIVAC delivered to the census bureau 1952 EDVAC becomes operational 
B.C.
Slamis Tablet

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