COMMUNICATIONS 
the editors of Time-Life Books, Inc. 
 - Alexandria, VA  Time-Life Books  c1986. 
 - 128 p.  col. ill.  28 cm. 
<br/><br/> Understanding computers 
<br/><br/>Bibliography: p. 123-125. 
<br/><br/><label>ISBN: </label>0809457008 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks--Popular works.<br/>Data transmission systems--Popular works.