Long, Larry E. Computers : information technology in perspective / Larry Long and Nancy Long. - Upper Saddle River, NJ : Prentice Hall, 2005. - xxxi, 489 p. : ill. col. ; 28 cm. Includes index. ISBN: 0131273140 Subjects--Topical Terms: Computers.Electronic data processing. LC Class. No.: QA76 / .L576 2005