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Hollerith's Card Reader

Hollerith's Card Reader

The first commerical use of punched cards was in the 1890 census, when Herman Hollerith's punched card based counting system tallied the entire United Stated population in six weeks - a job that had previously taken seven years.

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Uploaded on Aug. 19, 2007
The Enigma Cipher Machine

The Enigma Cipher Machine

Devised by the German navy prior to the start of World war II. Messages enciphered by an Enigma machine could only be deciphered by another Enigma machine. The Polish secret service managed to smuggle an Enigma machine into England. The English cryptoanalysts devided 'Colossus' to crack the enigma code which played the central role in the Allied success against the Nazis.

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Uploaded on Aug. 19, 2007
Facebook vs Orkut Usage comparison

Facebook vs Orkut Usage comparison

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Uploaded on Aug. 17, 2007
Macbook Pro

Macbook Pro

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Uploaded on July 20, 2007
Internet Usage Worldwide

Internet Usage Worldwide

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Uploaded on July 13, 2007
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