A History of Information Technology and Systems
Four basic periods
Characterized by a principal technology used to solve the input, processing, output and communication problems of the time:
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*A. The Premechanical* Age: 3000 B.C. - 1450 A.D.
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B. The Mechanical Age: 1450 - 1840
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Babbage's Engines
Charles Babbage (1792-1871), eccentric English mathematician
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C. The Electromechanical Age: 1840 - 1940.
The discovery of ways to harness electricity was the key advance made during this period. Knowledge and information could now be converted into electrical impulses.
The Beginnings of Telecommunication.
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D. The Electronic Age: 1940 - Present.
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