Discovering computers : living in a digital world : fundamentals / Gary B. Shelly. ..[et]. - Boston, Mass. : Course Technology, c2011. - 1 v. (various pagings) : ill. (chiefly col.) ; 28 cm. Includes index. ISBN: 9781439081198 Subjects--Topical Terms: Computers.Computer science. Dewey Class. No.: 004 D I C 221