ENIAC, short for Electronic Numerical Integrator and Computer, was the first large-scale, electronic, digital computer capable of being reprogrammed to solve a full range of computing problems, although earlier computers had been built with some of these properties. ENIAC was designed and built to calculate artillery firing tables for the U.S. Army's Ballistics Research Laboratory. The first problems run on the ENIAC however, were related to the design of the hydrogen bomb.
This photo has been artificially darkened, obscuring details such as the women who were present and the IBM equipment in use. The original photo can be seen in the article: Rose, Allen (April 1946). "Lightning Strikes Mathematics". Popular Science: 83–86. Retrieved 15 April 2012.