Electronic Numerical Integrator and Computer (ENIAC) ENIAC Technical Manual

This edition provides a fascinating glimpse into the technology behind the world's first electronic, general-purpose computer, conceived by John Mauchly and J. Presper Eckert and financed by the Ordnance Department of the U.S. Army. The Army's intent was to use it to calculate artillery firing tables but eventually it was even used to compute data for the design of the hydrogen bomb.