Long,larry  <br/><br/>
Introduction to computers and information processing  

 - 3rd. ed. 
 - Prentice hall  
<br/><br/><label>ISBN: </label>0134859472 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Digital communications.  2.Data transmission systems. 
<br/><br/><label>Dewey Class. No.: </label>004 LON