Guide to operating systems / 
Tomsho, Greg 
 - 5th ed. 
 - Singapore :  Cengage Learning Asia Pte Ltd,  2019. 
 - xxii, 579 p.: ill.; 25.3 cm. 
<br/><br/>Includes appendix, glossary, and index 
<br/><br/><label>ISBN: </label>9789814846134 
<br/><br/><label>Dewey Class. No.: </label>C 005.43 T662 2019