Input/output  / 
Time-Life Books. 
 - Virginia :  Alexandria ;  1986 . 
 - 128 p. :  ill. ;  32 cm. 
 - Understanding Computers ; .
<br/><br/><label>ISBN: </label>0809456664 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer images<br/>Software<br/>Computer era<br/>Computer security<br/>Computer storage<br/>Communications<br/>Transportation<br/>binary digit
<br/><br/><label>Dewey Class. No.: </label>R 001.64  / TIM N86I