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ENIAC—The First Electronic Computer

Electronic Numerical Integrator And Computer, was the first electronic general
purpose digital computer built in 1946 by John Mauchly and Presper Eckert.

ENIAC

UNIVAC

UNIVAC or Universal Automatic Computer was another successful invention of
John Mauchly and Presper Eckert in 1951, which could handle both numeric and

textual information.

John Mauchly

UNIVAC Presper Eckert

Evolution of Computers 11