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DICTIONARY OF COMPUTER AND INTERNET TERMS 9th Edition Douglas Downing, Ph.D. Michael Covington, Ph.D. Melody M. CovingtonRecommended by a customer because it has understandable definitions. From the publisher: Barron’s Business Dictionaries - All books in this series More than 2,500 key terms related to computer science, the Internet, and the IT industry are defined and explained in this up-to-date, A-to-Z dictionary. Extensive coverage is given to latest advances in digital photography and audio, recently developed computer hardware, virus protection, Internet culture, and much more. Here is handy, at-your-fingertips information that is useful to everybody who owns a computer. Sample Entry: DATA COMPRESSION the storage of data in a way that makes it occupy less space than if it were stored in its original form. For example, long sequences of repeated characters can be replaced with short codes that mean "The following character is repeated 35 times," or the like. A more thorough form of data compression involves using codes of different lengths for different character sequences so that the most common sequences take up less space. Most text files can be compressed to about half their normal size. Digitized images can often be compressed to 10 percent of their original size (or even more if some loss of fine detail can be tolerated), but machine-language programs sometimes cannot be compressed at all because they contain no recurrent patterns. See also ZIP FILE; STUFFIT; PCX; JPEG; MPEG. Paperback / 592 Pages / 4 1/2 x 7 / 2003 |
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