1960s - 1970s: Expert Systems Gain Attendance The concept of expert systems dates back to the 1960s but first gained prominence in the 1970s. Conclusive for this development were the insights of the Stanford University professor Edward Feigenbaum, who in 1977 demonstrated that the problem-solving capacity of a computer program rather is a result of the knowledge it posses, than of the applied programming techniques and formalisms. Expert systems were designed to mimic the knowledge and reasoning capabilities of a human specialist in a given domain by using (top down) artificial intelligence techniques. Made possible by the large storage capacity of the computers at the time, expert systems had the potential to interpret statistics and formulate rules. An initial use of expert systems was to diagnose and treat human physical disorders, but as its applications in the market place were extensive over the course of the following years they were also employed in fields such as stock market forecast, taxation, chemistry, and geology.

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Apple Founded by Steve Jobs and Steve Wozniak and headquartered in Cupertino, USA, Apple Computer was the first commercially successful personal computer company. In 1978 Wozniak invented the first personal computer, the Apple II. IBM countered its successful introduction to the market by introducing a personal computer running MS-DOS, the operating system supplied by Microsoft Corporation. And IBM gained leadership again. Although by introducing the first graphical user interface affordable to consumers having started the desktop publishing revolution, Apple could not regain leadership again. http://www.apple.com For more detailed information see the Encyclopaedia Britannica: http://www.britannica.com/bcom/eb/article/6/0,5716,115726+1+108787,00.html http://www.apple.com/

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Roman smoke telegraph network, 150 A.D. The Roman smoke signals network consisted of towers within visible range of each other and had a total length of about 4500 kilometers. It was used for military signaling. For a similar telegraph network in ancient Greece see Aeneas Tacitus' optical communication system.

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Adi Shamir Adi Shamir was one of three persons in a team to invent the RSA public-key cryptosystem. The other two authors were Ron Rivest and Leonard M. Adleman.

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