Hutchinson, Sarah E. Computers, communications, and information : a user's introduction / Sarah E. Hutchinson, Stacey C. Sawyer. - 7th ed. - Boston : Irwin/McGraw-Hill, 2000. - 1 v. (various pagings) : ill. (some col.) ; 28 cm. Includes bibliographical references and index. ISBN: 0072297441 : KES 500 (don.) Subjects--Topical Terms: Computers.Information technology. LC Class. No.: QA76.5 / .H867 2000