Progress of Technology through Time ENIAC Composed of

Progress of Technology through Time ENIAC 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. ©Elaine Lee, September, 2001 Current Technology 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.

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/My 5155 Te xt_V 07_HTM/My. Text 5155_Ch 01 B_V 07. htm • http: //www. computerhistory. org/timeline • http: //www. computerhistory. org/internet_his tory/