Spencer, Donald D. <br/><br/>
Computers in action  how computers work 
Dnald D. Spencer 
 - Rochelle Park, N.J.  Hayden Book Co.  c1978 
 - 173 p.  ill.  23cm 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0810457571 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers<br/>Electronic digital computers