Progress of Technology through Time  ENIAC Current Technology Composed of 17,000 vacuum tubes, 70,000 resistors, and 10,000 capacitors, the ENIAC (Electronic Numerical Integrator and Computer) weighed over 30 tons and took up 1800 square feet of floor space. Completed in 1945, the ENIAC was used for ballistics work and later on for weather prediction. Today’s technology uses vast numbers of electronic components in the form of miniaturized integrated circuits contained on silicon chips. Modern day desk calculators exceed ENIAC’s computational power and speed by far. ©Elaine Lee, September, 2001

Electronic Numerical Integrator and Computer ENIAC Electronic Numerical Integrator and Computer

ENIAC Facts 1945 – WWII Coming to a Close Weighed 30 tons = 60,000 pounds Occupied 1,800 square feet of floor space Used for Ballistics and Weather Prediction Consumed 150 Kilowatts of Electrical Power Performed 5,000 Additions and 1,000 Multiplications per Second

ENIAC Contained 17,000 Vacuum Tubes 10,000 Capacitors 70,000 Resistors

Vacuum Tubes

Capacitors

Resistors

Works Cited http://www.computerhistory.org/revolution/digital-logic/12/271 http://www.edwardbosworth.com/My5155Text_V07_HTM/MyText5155_Ch01B_V07.htm http://www.computerhistory.org/timeline http://www.computerhistory.org/internet_history/