John von Neumann (1903-1957) was unquestionably one of the most brilliant scientists of the twentieth century. He made major contributions to quantum mechanics and mathematical physics and in 1943 began a new and all-too-short career in computer science. William Aspray provides the first broad and detailed account of von Neumann's many different contributions to computing. These, Aspray reveals, extended far beyond his well-known work in the design and construction of computer systems to include important scientific applications, the revival of numerical analysis, and the creation of a theory of computing.
Aspray points out that from the beginning von Neumann took a wider and more theoretical view than other computer pioneers. In the now famous EDVAC report of 1945, von Neumann clearly stated the idea of a stored program that resides in the computer's memory along with the data it was to operate on. This stored program computer was described in terms of idealized neurons, highlighting the analogy between the digital computer and the human brain. Aspray describes von Neumann's development during the next decade, and almost entirely alone, of a theory of complicated information processing systems, or automata, and the introduction of themes such as learning, reliability of systems with unreliable components, self-replication, and the importance of memory and storage capacity in biological nervous systems; many of these themes remain at the heart of current investigations in parallel or neurocomputing.
Aspray allows the record to speak for itself. He unravels an intricate sequence of stories generated by von Neumann's work and brings into focus the interplay of personalities centered about von Neumann. He documents the complex interactions of science, the military, and business and shows how progress in applied mathematics was intertwined with that in computers.
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Review:
In the mid 1940s, John von Neumann revolutionized the nascent field of computing by showing that program instructions could be stored in a computer's memory instead of on external panels or punch cards. In John von Neumann and the Origins of Modern Computing, William Aspray details the design and construction of von Neumann's computer systems and explains the broader implications of von Neumann's contributions. Aspray discusses von Neumann's fame in the realms of mathematics, physics, and economics and his remarkable career, which included work as an atomic energy commissioner and as principal scientific adviser to the U.S. Air Force on ballistic missile development. By examining the interplay of science, military, and business, which formed the background for von Neumann's work, Aspray does an excellent job of placing von Neumann's accomplishments in computer science into the context of his other achievements.
About the Author:William Aspray is Bill and Lewis Suit Professor of Information Technologies in the School of Information at the University of Texas at Austin. He is the coeditor of Women and Information Technology: Research on Underrepresentation (2006) and The Internet and American Business (2008), both published by the MIT Press.
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