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  Time period for First Generation of Computer
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  --1st computer
 --Stands for Electronic Numerical Integrator And Computer
 --Weighed 27 tons
 --Consumed 150 kilowatts
 --Contain vacuum tubes
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  Time period for 2nd Generation of Computer
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  --Transistor Computer
 --Smaller; less heat; consumed less energy
 --First one in 1953
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  --Used chips
 --MUCH smaller; cheaper
 --“Mainframes”
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  Time period for 3rd Generation of Computer
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  --Micro Processor [AKA CPU]
 --1971~ Present
 --By Marcian Hoff, Masatoshi Shima, and Stanley Mazor
 --Heart of all computer
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