Keller, Laurie S. <br/><br/>
Operating systems :  communicating with and controlling the computer /  [Books]. 
Laurie S. Keller.  
 - New York :   Prentice Hall,   1988. 
 - xiv, 370 p. :   ill. ;   24 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0136380409 
<br/><br/><label>LCCN: </label>87005815 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operating systems (Computers)