Technology foundation course The man-made world. Units 15-16: analogue computing, control 
by Open Unviersity 
 - Walton Hall  Blectchley Buckinghamshire, Open Unversity Press  1972 
 - 47p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers
<br/><br/><label>Dewey Class. No.: </label>YA6 Op2/15