TC 100 March 1 - TC 100 16:38 Charles Babbage(1822 •...

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Unformatted text preview: TC 100 16:38 Charles Babbage (1822) • Difference engine World War II(1939-1945) • Crytography o Colossus Alan Truing (1912-1954) • Father of modern computing • Touring test ENIAC(1946) • US armys electronic numerical integrator and calculator Moore’s Law= Constant doubling • Transistors/space (computers get faster every 18 months) Transistors • Originated From bell labs (1947) o William Shockley o John Bardeen o Walter Bratain • Smaller generated less heat and wouldn’t burn out o 289 million transistors in a modern chip • Microcomputers o First were rooms sized terminals( no processor) Used dumb terminals to tie users together o Mini Computers • Alto Computer o Xerox-developed (1972-1974) o Mouse & Ethernet Doug englebert (Stanford) Mouse; GUI(graphic user interface); hypertext 32,000 o Altair 8800 PC (1975) No CRT, keyboard, or drives $621; home built o Apple II( 1977)...
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This note was uploaded on 05/25/2011 for the course TC TC100 taught by Professor Calebcarr during the Spring '09 term at Michigan State University.

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TC 100 March 1 - TC 100 16:38 Charles Babbage(1822 •...

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