Understanding operating systems / 
McHoes, Ann McIver; Flynn, Ida M. 
 - 5th ed. 
 - Singapore :  Cengage Learning Asia Pte Ltd,  2009. 
 - xix, 577 p.: ill.; 22.9 cm. 
<br/><br/>Includes glossary, bibliography, and index 
<br/><br/><label>ISBN: </label>9789814272551 
<br/><br/><label>Dewey Class. No.: </label>C 005.4 M151 2009