Introduction to information technology 

 - 1st imp. 
 - Noida:  pearson,  2012. 
 - 757p. 
<br/><br/><label>ISBN: </label>9788131760291 
<br/><br/><label>Subjects--Index Terms: </label>Data processing & computer science 
<br/><br/><label>Dewey Class. No.: </label>004