Hellman, Hal, 1927- Computer basics / by Hal Hellman ; illustrated by Art Seiden, with photographs ; created and produced by Arvid Knudsen. - Englewood Cliffs, N.J. : Prentice-Hall, c1983. - 48 p. : ill. ; 24 cm. Includes index. ISBN: 0131645749 : $8.95 LCCN: 82021483 LC Class. No.: QA76.23 .H44 1983 / .H44 1983 Dewey Class. No.: 001.64