Duffy, tim  <br/><br/>
Computing concepts / Tim Duffy. - 2nd ed.  

 - 2nd ed. 
 - Wadsworth  
<br/><br/><label>ISBN: </label>0534219128 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Electronic data processing 
<br/><br/><label>Dewey Class. No.: </label>004 DUF