In 1945 Turing develop a revolutionary design for an electronic computing machine-his Automatic Computing Engine ('ACE'). Alan Turing's Automatic Computing Engine describes Turing's struggle to build a modern computer. The first detailed history of Turing's contributions to computer science, this text is essential reading for anyone interested in computer history and the history of mathematics. And relates the story of the discovery of computers, the book clearly describes the hardware and software of the ACE-including the first computer program. This book has a vast system of hyperlinks to The Turing Archive for the History of Computing, an on-line library of digital facsimile document typed by Turing and other scientists who pioneered the electronic computer.