Gill, P.S. <br/><br/>
Operating system concepts :    
P.S. Gill 
 - New Delhi :   Firewall Media,   2012 
 - 181p. :    ill. / ;    24 cm. 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>8170089131 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operating systems (Computers)--------
<br/><br/><label>Dewey Class. No.: </label>005.43