1. ENIAC

2. Basic Facts  The Electronic Numerical Integrator and Computer (ENIAC) was first announced on February 14, 1946.  It was the first general-purpose electronic computer.  It was constructed and operated at the Moore School of Electrical Engineering.  It was built by John Mauchly and J. Presper Eckert.  It was a war project from WWll its mathematical calculations needed to produce artillery firing tables for the Army.

3. Building the ENIAC  Many inventions led to the development of the ENIAC.  The mechanical brains, abacus, slide rule, difference engine, mechanical calculators, differential analyzer, vacuum tubes and punch cards all contributed to ENIAC.  ENIAC was 150 feet wide with 20 banks of flashing lights.  It weighed 40 tons.

4.  It had 40 panels of plugboards in a U shape.  It had 18, 000 vacuum tubes.  It contained thousands of circuits.  It used 150 kilowatts of electricity.  The internal memory was composed of twenty ten digit accumulators and 6, 000 cables and switches on the function table.  The external memory was supplied by punch cards.

5. Works Cited "Penn Engineering - ENIAC: Celebrating Penn Engineering History." Penn Engineering - Welcome to the School of Engineering and Applied Science (SEAS). N.p., n.d. Web. 11 Sept. 2013.. Cruz, Frank da. “Programming the ENIAC.” Colombia University Computing History. Apr.2012. Web. 11 Sept. 2013