Keller, Laurie s. <br/><br/>
Operating systems :  communicating with and controlling the computer Laurie S.Keller / 
by Laure S. Keller 
 - New York:  Prentice-Hall,  1988. 
 - xiv, 370 p. ;   23 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0136380409 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operating systems (Computers).