Cassel, Don <br/><br/>
Understanding computers / 
Don Cassel. 
 - Ebglewood Cliffs, NJ :  Prentice Hall,  c1990. 
 - xvii, 435 p. : chiefly col. il 
<br/><br/> Includes appendices, glossary, and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers.<br/>Computer software.