Downton, A. C. <br/><br/>
Computers and microprocessors :  components and systems / 
A. C. Downton. 
 - 2nd ed. 
 - Berkshire :  Van Nostrand Reinhold,  c1987. 
 - xi, 212p. :  ill. ;  22 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>027800533  (pbk)  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic data processing.
<br/><br/><label>Subjects--Index Terms: </label>Computer systems