Dumas, M. Barry. <br/><br/>
Principles of computer networks and communications /  
M. Barry Dumas, Morris Schwartz. 
 - Upper Saddle River, NJ :    Pearson Prentice Hall,    c2009. 
 - xxix, 519 p. :    ill. ;    27 cm. 
<br/><br/> Includes index. 
<br/><br/>The modern signal carriers : electricity, light, media, and impairments -- Signal fundamentals -- Encoding : representing information -- Error control -- Communications connections -- Digital communication techniques -- Comprehending networks -- Local area networks -- Circuit switching, the telcos, and alternatives -- Packet switched wide area networks -- Internetworking and the Internet -- TCP/IP, associated Internet protocols, and routing -- Wireless networks -- Network security -- Network management -- Planning, designing, and implementing a network -- The future of network communications. 
<br/><br/> For undergraduate and graduate level Network and Data Communication courses. This book takes a historical approach to information systems, showing students how technologies have built upon each other so they have an appreciation of how and why current technologies exist. 
<br/><br/><label>ISBN: </label>0131672649 9780137142293 
<br/><br/><label>LCCN: </label>2007042135 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks.
<br/><br/><label>Dewey Class. No.: </label>004.6