eniac was the first truly programmable electronic computer created at the university of pennsylvania in 1946.

The ENIAC (Electronic Numerical Integrator and Computer) was the first truly programmable, electronic, general-purpose digital computer. It was designed and built at the University of Pennsylvania during World War II. Work on the ENIAC began in 1943, it was completed in 1945 and officially unveiled on February 14, 1946. The machine was capable of being reprogrammed to solve a wide range of numerical problems and was considered the start of the Information Age. ENIAC was designed by John Mauchly and J. Presper Eckert and initially developed to calculate artillery firing tables for the U.S. Army Ballistic Research Laboratory. It was a massive machine with 40 panels, using about 17,000 vacuum tubes and other components, and was capable of performing about 5,000 additions per second. The first practical use of the ENIAC was in December 1945 to work on a thermonuclear weapon study. It was formally dedicated at the University of Pennsylvania in February 1946.