Parker, Charles S., 1945- Understanding computers : today and tomorrow / Charles S. Parker. - Exact. - Forth Worth , TX : Dryden Press, 1996. - lv, : col. ill. ; 28 cm. - The Dryden Press series in information systems Dryden exact . Includes index. Open. ISBN: 0030138272 LCCN: 9570004 Subjects--Topical Terms: Computers.Electronic data processing.