Sawyer, Stacey C. <br/><br/>
Using information technology :   a practical introduction to computers & communications / 
Stacey C. Sawyer, Brian K. Williams 
 - 6th ed. 
 - Boston, MA:   Irwin/McGraw-Hill,   2005 
 - xxi, 304, 27, 5, 13 p.:   ill. (some col.), col.;   28 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0072882905 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers<br/>Telecommunication systems<br/>Information technology