Block Computing  Living with technology 

 - Walton  Open university  1993 
 - 20p.  23cm 
<br/><br/><label>ISBN: </label>074926196X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer science<br/>Data processing
<br/><br/><label>Dewey Class. No.: </label>004  / OPE