O'Leary, Timothy J. <br/><br/>
Computing essentials / 
Timothy J. O'Leary, Linda I. O'Leary. 
 - intoductory  ed. 
 - New York :  McGraw-Hill,  2007. 
 - xxvi, 398  p. 
<br/><br/><label>ISBN: </label>007322801x : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers.<br/>Electronic data processing.