Trainor, Timothy N., 1953- Computers! / Timothy N. Trainor, Diane Krasnewich. - 2nd ed. - Santa Cruz, CA : Mitchell Pub., c1989. - xix, 554 p. : ill. (some col.) ; 28 cm. Includes index. ISBN: 0394394208 LCCN: 88061892 LC Class. No.: QA76 .T67 1989 / .T67 1989 Dewey Class. No.: 004