Parsons, June Jamrich. <br/><br/>
Computer concepts introductory / 
June Jamrich Parsons and Dan Oja. 
 - 9th edition. 
 -  Cengage Learning,  2013. 
 - 240 pages :  Illustrations ;  28 cm. 
<br/><br/><label>ISBN: </label>9781133526247 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer input--output equipment.<br/>Computer science.<br/>Computer software.<br/>Computers.<br/>Computers--study and teaching--problems, exercises, etc.