User:Robert W King/Sandbox

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Revision as of 11:27, 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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