Open University <br/><br/>
Digital computer 

 - Walton  Hall Open University         1976 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>36494 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Telecommunication<br/>Communication
<br/><br/><label>Dewey Class. No.: </label>D65,8(B), L6