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 - Virginia  Time-Life Books  1986 
 - 128p.  ill.  28cm 
 - Understanding computers .
 - Understanding computers .
<br/><br/> Includes index 
<br/><br/>Bibliography: p.123-125 
<br/><br/><label>ISBN: </label>0809456672 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers--Electronic data processing
<br/><br/><label>Dewey Class. No.: </label>621.38195  / UND