图 计算 ENIAC 1946 First stored-program electronic computer 17,500 vacuum tubes 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 11 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 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 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) 11