Thomas Haigh is Professor of History at the University of Wisconsin-Milwaukee, Comenius Visiting Professor at the University of Siegen, and the coauthor of ENIAC in Action: Making and Remaking the Modern Computer (MIT Press). Paul E. Ceruzzi is Curator Emeritus at the Smithsonian Institution's National Air and Space Museum and the author of Internet Alley: High Technology in Tysons Corner,1945-2005, Computing: A Concise History (both published by the MIT Press), and other books.