Schaum’s Outline Series OF Principles of Computer Science phần 9 pdf

... of the world went ahead using strong encryption anyway. Starting in 199 9, the government’s efforts to restrict export of strong encryption technology suffered reversals in the courts. In 199 9, ... unleashed a computer worm in 198 8 from Cornell University. Kevin Poulsen got control of the telephone lines going to a Los Angeles radio station in 199 0 in order to insure himself of a...

Ngày tải lên: 12/08/2014, 21:22

... most modern computers. 4 INTRODUCTION TO COMPUTER SCIENCE [CHAP. 1 SCHAUM’S OUTLINE OF Principles of COMPUTER SCIENCE CARL REYNOLDS Department of Computer Science Rochester Institute of Technology PAUL ... Jones (http://www.cs.uiowa.edu/~jones/cards/history.html). SCHAUM’S OUTLINE OF Principles of COMPUTER SCIENCE CHAPTER 1 Introduction to Computer S...

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... but in computer science, because of the ubiquity of binary math, this is usually written as lg n, meaning logarithm to the base 2 of n. The total running time T of the merge sort consists of the ... sort the back half of NUMS. It’s back to level 1 of recursion. 9 merge_sort calls merge_sort again, passing only the first of the last two numbers of NUMS. This is level 2...

Ngày tải lên: 12/08/2014, 21:22

... is a pattern of ones and zeros stored in a word of computer memory. By the way, a “word” of memory is the basic unit of storage for a computer. A 16-bit computer has a word size of 16 bits, or ... 3X, 'AV= ', F9.2 ) STOP END Example input cards: 55 821 3 7 9 4 7 812 1 4 3 3 2 813 3 2 3 1 1 824 7 9 9 9 9 825 6 9 8 8 5 This program starts by reserving an array...

Ngày tải lên: 12/08/2014, 21:22

... as part of the state of each individual car (part of the state of each instance). On the other hand, we would maintain a count of the total number of Automobiles as part of the state of the class ... ((cdr n)), a list of one element (the element is another list, the cdr of the list of parameters), and the second line of cond would return a list instead of a number. O...

Ngày tải lên: 12/08/2014, 21:22

... a great deal of computer science research during the 196 0s, 197 0s, and 198 0s. Several solutions have been developed. Dekker offered the first software solution to the problem in 196 5, and a simplification ... Memory Mapped I/O Most computers of the 196 0s, 197 0s, and 198 0s had a special set of instructions for I/O, and many computers still do. With such architecture, reading ....

Ngày tải lên: 12/08/2014, 21:22

... applications and limitations as the test-and-set. SEMAPHORES In 196 5 one of the most prolific contributors to computer science proposed the construct of a “semaphore” which could be used to provide mutual ... a logical page number. Since the number of frames of physical memory is likely to be much smaller than the number of pages of logical memory in a 64-bit computer (with...

Ngày tải lên: 12/08/2014, 21:22

... packet to the IP software. The IP software CHAP. 7] NETWORKING 133 ANSI standards for SQL were published in 198 6, 198 9, 199 2, 199 9, and 2003. In practice, different database vendors offer SQL with ... University of Utah by the end of 196 9. In 197 1, one of the researchers sent the first e-mail message over the network, and in 197 3, the file transfer protocol allowed a file to be...

Ngày tải lên: 12/08/2014, 21:22

... secret, of course.). Since 198 1, software has been patentable if the software is part of an invention of a new machine or process. A key to making the distinction has been whether the software ... subquery returns any rows ALL True if all of a set of comparisons are true ANY True if any one of a set of comparisons is true SOME True if some of a set of comparisons is ture T...

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... undemand- ing of high performance. ANSWERS TO REVIEW QUESTIONS 213 This page intentionally left blank 2 19 Aiken, Howard, 9 algorithm, 2, 14 order of growth of (see order of growth) application software, ... inheritance clients, 98 , 132–133 Cobol, 46 compiler, 10, 47-8 computer science, definition, 1 computer virus, 175–176 computer word data representation in, 33–36 size...

Ngày tải lên: 12/08/2014, 21:22