This Day in History: February 14

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Today: September 22, 2017
John Mauchly and J. Presper Eckert Unveil The ENIAC
ENIAC

February 14, 1946

John Mauchly and J. Presper Eckert Unveil The ENIAC

John Mauchly and J. Presper Eckert unveil the much-anticipated ENIAC at the University of Pennsylvania. The ENIAC calculated 5,000 operations per second -- 1,000 times faster than its contemporaries. Impressive in size as well as strength, the machine occupied over 1,500 square feet of space, weighed 30 tons, and used 18,000 vacuum tubes.