O’Leary, Timothy J. <br/><br/>
Computing essentials/ 
Timothy J. O’Leary, Linda I. O’Leary. 
 - Boston:   McGraw-Hill,   c2008. 
 - 514 p.:   ill.;   26 cm.  
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>978-007-126718-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers. <br/>Electronic data processing.
<br/><br/><label>Dewey Class. No.: </label>GC 004 O999 2008