The Physics of Information Technology

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Cambridge University Press, Jun 23, 2011 - Science - 388 pages
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The Physics of Information Technology explores the familiar devices that we use to collect, transform, transmit, and interact with electronic information. Many such devices operate surprisingly close to very many fundamental physical limits. Understanding how such devices work, and how they can (and cannot) be improved, requires deep insight into the character of physical law as well as engineering practice. The book starts with an introduction to units, forces, and the probabilistic foundations of noise and signaling, then progresses through the electromagnetics of wired and wireless communications, and the quantum mechanics of electronic, optical, and magnetic materials, to discussions of mechanisms for computation, storage, sensing, and display. This self-contained volume will help both physical scientists and computer scientists see beyond the conventional division between hardware and software to understand the implications of physical theory for information manipulation.

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About the author (2011)

Neil Gershenfeld, Ph.D., is an associate professor at MIT, the director of the Media Lab's Physics and Media Group, and codirector of the Things that Think consortium. Gershenfeld has written for "Wired" and for other technology publications, and he lives in Boston. He is the author of several books, including "When Things Start to Think".

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