Sparkes, John <br/><br/>
Heart of computers 
by John Sparkes 
 - Buckinghamshire  Open University Press  1972 
 - 60p. 
 - Technology Foundation Course Unit 13 &14 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers
<br/><br/><label>Dewey Class. No.: </label>I5372 Sp26