ENIAC and Electronic General-Purpose Computing
Definition
ENIAC was an early large-scale electronic digital computer completed in the 1940s. It used vacuum tubes and helped demonstrate the practicality of electronic general-purpose computation.
What was ENIAC?
ENIAC, the Electronic Numerical Integrator and Computer, was completed in 1945 at the University of Pennsylvania by a team led by John Mauchly and J. Presper Eckert. It was an electronic, programmable, general-purpose digital computer built with thousands of vacuum tubes.
What was it built for?
The U.S. Army funded ENIAC primarily to calculate artillery firing tables, which required large amounts of numerical computation. ENIAC could perform arithmetic much faster than electromechanical machines. Early programming involved setting switches and connecting cables, so changing a program could be a substantial physical task.
Why ENIAC was a turning point
ENIAC demonstrated the speed available from electronic digital computation. It was not originally a convenient stored-program machine, but its development influenced later computer designs. AI research in the 1950s became possible only because electronic computers made repeated symbolic and numerical computation practical.
Related terms, defined
Reference guide and primary sources
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