National Research Council, Division on Engineering and's Computer Science: Reflections on the Field, Reflections from PDF

By National Research Council, Division on Engineering and Physical Sciences, Computer Science and Telecommunications Board, Committee on the Fundamentals of Computer Science: Challenges and Opportunities

ISBN-10: 0309093015

ISBN-13: 9780309093019

During this quantity, the Committee at the basics of computing device technological know-how defines the basic personality of computing device technology, describes its tools and modes of analysis, and clarifies the character of the pc technology study underlying details know-how breakthroughs. The 23 essays evaluation the background of computation, abstraction, programming languages, databases, cryptography, spreadsheets, and net looking out. No index is supplied.

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Extra info for Computer Science: Reflections on the Field, Reflections from the Field

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One cannot really imagine an analogue of this process for the television—it would be as though millions of Americans had been induced to buy large inert boxes for their living rooms, and a decade later someone dreamed up the technology to begin broadcasting pictures to them. But this is more or less what happened with the Web. The Limits of Computation Computer science was born knowing its own limitations. For the strength of the universal machine leads directly to a second, and more negative, consequence—uncomputability, the fact that certain natural computational tasks cannot be carried out by Turing machines or, by extension, computer programs.

At this point, we have two Moore’s laws: • Technologist’s Moore’s law: number of transistors per chip doubles every 18 months, and • Popular Moore’s law: computer performance doubles every 2 years. This popular Moore’s law has provided incredible opportunities for the rest of computer science. Everyone from researchers to product designers can dream up many ideas and ask not whether something will be practical, but when (assuming, of course, one is not trying to solve problems that cannot be solved or require execution times that defeat exponential growth with exponential complexity—see Kleinberg and Papadimitriou).

Emerging techniques for supporting multiple threads on a microprocessor, however, promise to make multithreading hardware much more widely available. Moreover, there is also tremendous additional potential for using threads executing in parallel on multiple computers that communicate via local- or wide-area networks. In the extreme, computers around the world could be harnessed to solve problems on demand. This vision is now known as grid computing, since it strives to deliver customers access to computing resources much as the power grid delivers customers power.

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Computer Science: Reflections on the Field, Reflections from the Field by National Research Council, Division on Engineering and Physical Sciences, Computer Science and Telecommunications Board, Committee on the Fundamentals of Computer Science: Challenges and Opportunities


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