Harry Henderson's A to Z of Computer Scientists PDF

By Harry Henderson

ISBN-10: 0816045313

ISBN-13: 9780816045310

This accomplished A-to-Z biographical dictionary explores the various staff of inventors, scientists, marketers, and visionaries within the computing device technological know-how box. The state of the art, modern entries and data at the computing device supply a glimpse into not just their force but additionally their demanding situations in making a new type of enterprise and a brand new form of tradition.

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And when computers began to store information in databases, the ability to specify the “Boolean operators” of AND, OR, and NOT made it possible to more precisely specify the information being sought. Further Reading Henderson, Harry. Modern Mathematicians. New York: Facts On File, 1996. Kramer, Edna E. The Nature and Growth of Modern Mathematics. : Princeton University Press, 1981. MacHale, Desmond. George Boole: His Life and Work. Dublin: Boole Press, 1985. ᨳ Bricklin, Daniel (1951– ) American Inventor, Programmer Whenever a business executive or manager wants “the numbers” to summarize profits and losses or to back up a proposal, the chances are very good that the data will be provided in the rows and columns of a spreadsheet.

Using the differential analyzer, engineers could simulate the operation of a power system and test their designs. The use of mechanical parts made these computers relatively slow. In 1935, however, Bush began work on a new machine, which would become known as the Rockefeller Differential Analyzer (named after the Rockefeller Foundation, which funded part of the development). Although an analog computer, this machine used vacuum tubes and relays for much of its operation, as would the ENIAC and other early digital computers.

With this versatile calculating tool, a manager can easily apply formulas to explore the effects of changes in billing, shipping, or other business procedures. Investors can use spreadsheets to chart the performance of their stocks or compare the returns on different investments. Now almost as indispensable as the word processor, the spreadsheet was the invention of a young programmer named Dan Bricklin. Bricklin was born on July 16, 1951, in Philadelphia. He attended Solomon Schechter Day School and then enrolled at the Massachusetts Institute of Technology in 1969.

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A to Z of Computer Scientists by Harry Henderson


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