图 计算机 ENIAC 1946 First stored-program electronic computer 17,500 vacuum tubes(电子管) 60,000 pounds 174 kilowatts 5000 operations second Cpl.Irwin Goldstein(foreground)sets the switches on one of the NIAC's function tables at the Moore School of Electrica Engineering.(U.S.Army photo) 1949 Prediction:Some day a computer as powerful as ENIAC will contain only 1,500 vacuum tubes,weigh only 3,000 pounds,and consume only 10 kilowatts 材料科学与工程学院 12 School of Materials Science and Engineering
材料科学与工程学院 School of Materials Science and Engineering ENIAC 1946 First stored-program electronic computer 17,500 vacuum tubes（电子管） 60,000 pounds 174 kilowatts 5000 operations / second 1949 Prediction: Some day a computer as powerful as ENIAC will contain only 1,500 vacuum tubes, weigh only 3,000 pounds, and consume only 10 kilowatts 计算机 Cpl. Irwin Goldstein (foreground) sets the switches on one of the ENIAC's function tables at the Moore School of Electrical Engineering. (U.S. Army photo) 12
周 First transistor-—晶体管 Bell Labs. 24th Dec.1947 材料科学与工程学院 13 School of Materials Science and Engineering
材料科学与工程学院 School of Materials Science and Engineering First transistor——晶体管 Bell Labs. 24th Dec. 1947 13