British computer scientist, mathematician, logician and theoretical biologist. He is known for cryptanalysis of the Enigma, the Turing machine, the Turing test and LU decomposition. Turing’s work greatly aided the development of theoretical computer science.
The TextEdit icon of Mac OS X leopard has actual words - extracts from the successful "Think Different" campaign. It's in the form of a letter addressed to "Kate" and signed by "John Appleseed". [more...]