Input/output / 
by the editors of Time-Life Books. 
 - Alexandria, Va. :  Time-Life Books,  c1986. 
 - 128 p. :  col. ill. ;  29 cm. 
 - Understanding computers .
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 123-125. 
<br/><br/><label>ISBN: </label>0809456664 
<br/><br/><label>LCCN: </label>85028832  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers.<br/>Electronic data processing.
<br/><br/><label>LC Class. No.: </label>QA76  / .I486 1986 
<br/><br/><label>Dewey Class. No.: </label>004