Nagpal D P <br/><br/>
Computer Fundamentals :Concepts systems applications 
Nagpal D P 
 - New Delhi  S Chand & Company  2010 
 - x,771p 
<br/><br/><label>ISBN: </label>8121923883 
<br/><br/><label>Dewey Class. No.: </label>621.381952  / NA-C