Carey, David,   1782-1824. <br/><br/>
How it works ... the computer / 
 Computer 
by David Carey ; new material in this edition prepared by James Blythe ; with illustrations by B.H. Robinson and Gerald Witcomb. 
 - Loughborough :  Ladybird Books,  c1979. 
 - 50, [2] p. :  ill. ;  18 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers--Juvenile literature
<br/><br/><label>LC Class. No.: </label>QA76.9