1950: The Turing Test Alan Turing, an English mathematician and logician, advocated the theory that eventually computers could be created that would be capable of human thought. To cut through the long philosophical debate about exactly how to define thinking he proposed the "imitation game" (1950), now known as Turing test. His test consisted of a person asking questions via keyboard to both a person and an intelligent machine within a fixed time frame. After a series of tests the computers success at "thinking" could be measured by its probability of being misidentified as the human subject. Still today Turing's papers on the subject are widely acknowledged as the foundation of research in artificial intelligence.

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The Big Five of Commercial Media After a number of mergers and acquisitions five powerful media conglomerates lead the world's content production and distribution. They operate on an international basis with subsidiaries all around the globe and engage in every imaginable kind of media industry. Table: The World's Leading Media Companies Media Company 1998 Revenues (in US$) Property/Corporate Information AOL Time Warner (US) 26,838.000.000* http://www.timewarner.com/corp/about/timewarnerinc/corporate/index.html Disney (US) 22,976.000.000 http://www.disney.com Bertelsmann (GER) 16,389.000.000 http://www.bertelsmann.com/facts/report/report.cfm News Corporation (AUS) 12,841.000.000 http://www.newscorp.com/public/cor/cor_m.htm Viacom (US) 12,100.000.000 http://www.viacom.com/global.tin (* Revenues of Time Warner only (merger with AOL took place in January 2000)

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Artificial intelligence approaches Looking for ways to create intelligent machines, the field of artificial intelligence (AI) has split into several different approaches based on the opinions about the most promising methods and theories. The two basic AI approaches are: bottom-up and top-down. The bottom-up theory suggests that the best way to achieve artificial intelligence is to build electronic replicas of the human brain's complex network of neurons (through neural networks and parallel computing) while the top-down approach attempts to mimic the brain's behavior with computer programs (for example expert systems).

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George Boole b. Nov. 2, 1815, Lincoln, Lincolnshire, England d. Dec. 8, 1864, Ballintemple, County Cork, Ireland English mathematician who helped establish modern symbolic logic and whose algebra of logic, now called Boolean algebra, is basic to the design of digital computer circuits. One of the first Englishmen to write on logic, Boole pointed out the analogy between the algebraic symbols and those that can represent logical forms and syllogisms, showing how the symbols of quantity can be separated from those of operation. With Boole in 1847 and 1854 began the algebra of logic, or what is now called Boolean algebra. It is basically two-valued in that it involves a subdivision of objects into separate classes, each with a given property. Different classes can then be treated as to the presence or absence of the same property.

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