For all his genius, John von Neumann was not, as he is generally credited, the true father of the modern computer. That honor belongs to the two men who built the first programmable computer, the lengendary ENIAC: John Mauchly and Presper Eckert. In ENIAC, two stories-of the three-year race to complete the computer, and of the three-decade struggle to take credit for it-are intertwined and fully revealed to general readers for the first time.