O’ Leary, Timithy J.  <br/><br/>
Computing essentials 

 - New York   McGraw-Hill  2011 
 - 515 p 
<br/><br/><label>ISBN: </label>9780071221276 
<br/><br/><label>Subjects--Topical Terms: </label><br/>  Computers.  Electronic data processing. 
<br/><br/><label>LC Class. No.: </label>QA 76.5 .O4285/