Download Computer Science: Reflections on the Field, Reflections from by National Research Council, Division on Engineering and 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

During this quantity, the Committee at the basics of machine technological know-how defines the basic personality of laptop technological know-how, describes its tools and modes of analysis, and clarifies the character of the pc technological know-how study underlying info know-how breakthroughs. The 23 essays evaluate the historical past of computation, abstraction, programming languages, databases, cryptography, spreadsheets, and web looking. No index is supplied.

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

Sample text

The discovery that the answer to this question is 22 COMPUTER SCIENCE: REFLECTIONS no is fundamental in the sense that it applies to all possible programs rather than being a statement about a particular piece of programming code. Perhaps more important is the discovery that not everything that is decidable (a computer can solve it, somehow) is tractable (solvable in sufficiently little time that we can expect to get answers to reasonably large instances of the problem in reasonable time). Some problems, such as searching for cards described above, are tractable.

Research on THE ESSENTIAL CHARACTER OF COMPUTER SCIENCE 23 fundamental limits thus informs practical application, by showing that some system designs are ultimately a dead end. In Part Two, Kleinberg and Papadimitriou (in Chapter 2) provide a discussion of the precise implications of the theory of intractable problems, and Sudan (in Chapter 7) discusses cryptography, a domain where the intractability of a problem is a help, not a hindrance, because the goal is assurance that an intruder with a fast computer cannot discover secrets within any reasonable amount of time.

Computer science research creates artificial constructs, notably unlimited by physical laws. • Computer science research exploits and addresses exponential growth. • Computer science research seeks the fundamental limits on what can be computed. • Computer science research often focuses on the complex, analytic, rational action that is associated with human intelligence. 16 COMPUTER SCIENCE: REFLECTIONS convenient bytes (sequences of 8 bits, representing characters such as letters) to which the proper interpretation is applied.

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