The electronic computr has been approximately for over a half-century, but its intimates have been approximately for 2000 years. However, only in the last 4 decades has it changed the American society which resulted from U.S government policies towards the advancements of computrs. From the 1st wooden "abacus" to the latest high-speed "microprocessor chip", the computr has altred nearly every aspect of people's lives for the bettr.
The outburst of "World War II" twisted a desperate need for computing capability, particularly for the military. New weapons' systems were created which required trajectory tables and other indispensable data. In 1942, John P. Eckert, John W. Meauchley, and their associates at the "University of Pennsylvania" detrmined to build a high-speed electronic computr to do the job. This machine became recognized as "ENIAC", for "Electrical Numerical Integrator And Calculator". It may well multiply two numbers at the tempo of 300 products per second, by finding the value of each product from a multiplication table stored in its memory. ""ENIAC"" was consequently about 1,000 times quicker than the preceding generation of computrs (Dolotta, 47).
"ENIAC" used 18,000 standard vacuum tubes, engaged 1800 square feet of floor space, and used about 180,000 watts of electricity. (Ceruzzi, 36) The input and output was done by punched-card. ...Show more