The true father of the modern computer was not John von Neumann, as he is generally credited. That honor belongs to the two men, John Mauchly and Presper Eckert, who built the world's first programmable computer: the legendary ENIAC (Electronic Numerical Integrator and Computer). Mauchly and Eckert developed a revolutionary vision: to make electricity "think." Funded by the U.S. Army, the team they led constructed a behemoth weighing thirty tons with...