Hellman, Hal,  1927- <br/><br/>
Computer basics illustrated by Art Seiden, with photographs created and produced by Arvid Knudsen 
by Hal Hellman 
 - Englewood Cliffs, N.J  Prentice-Hall  c1983 
 - 48 p.  ill.  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers--Juvenile literature<br/>Electronic data processing--Juvenile literature<br/>Automation--Juvenile literature<br/>Computers<br/>Electronic data processing<br/>Automation
<br/><br/><label>Dewey Class. No.: </label>001.64