Hobbs, Marvin. <br/><br/>
Modern communications switching systems / 
by Marvin Hobbs. 
 - 1st ed. 
 - Blue Ridge Summit, Pa. :  Tab Books,  1981. 
 - 308 p. :  ill. ;  22 cm. 
<br/><br/> Includes index. 
<br/><br/>The Slow Push for Progress (Page-7) Basic Switching and Traffic Concepts (Page-19) Logic Switching Algebra and Control (Page-39) Circuit Switches and Relays for Speech (Page-56) Control and Signal Methods (Page-78) Modern Step-by-Step and Rotary Exchanges (Page-104) Electromechanical Crossbar Systems (Page-128) Electronic Exchanges with Wired Logic (Page-142) The Elements of Stored Program Control (Page-162) Typical SPC Exchange Switching Systems (Page-199) Data and Telex Switching (Page-215) Automatic Private Branch Exchanges (Page-229).            
<br/><br/><br/>Almirah No.36 Shelf No.5 
<br/><br/><label>ISBN: </label>0830612785 (pbk.) : 0830696350 : 
<br/><br/><label>LCCN: </label>80028236 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunications engineering.
<br/><br/><label>Dewey Class. No.: </label>621.382