User:Robert W King/Sandbox

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Revision as of 12:28, 21 May 2007 by imported>Robert W King (→‎Test of timeline)
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Test of timeline

?? B.C.
 Slamis Tablet

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

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|→?? B.C. : - Slamis Tablet    THIS TEXT RUNS OVER THE IMAGE TABLE/INFOBOX ON THE RIGHT
|
|-- 300 B.C. - 500 A.D. : Roman Hand Abacus
|
|-- ~1200 A.D. : modern Chinese abacus
|
|> ?? B.C. : Codex Madrid
|
|> 1642 : Pascaline
|
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