Morley, Deborah <br/><br/>
Understanding computers :  today and tomorrow / 
Deborah Morley, Charles S. Parker 
 - 12th ed. 
 - Boston, Mass. :  Course Technology/Cengage Learning,  c2009 
 - 1 v. (various pagings) :  col. ill. ;  28 cm. 
<br/><br/> "Comprehensive."  Includes index 
<br/><br/><label>ISBN: </label>9781423925217 (pbk. : student ed.) 1423925211 (pbk. : student ed.) 9781603340120 (inter. stud. ed.) 1603340122 (inter. stud. ed.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers<br/>Electronic data processing