Davis, William S.,  1943- <br/><br/>
Information processing systems / 
William S. Davis. 
 - 2d ed. 
 - Reading, Mass. :  Addison-Wesley Pub. Co.,  c1981. 
 - xix, 504 p., [4] leaves of plates :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0201031833 :  $15.95 (est.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic data processing.<br/>Electronic digital computers.
<br/><br/><label>LC Class. No.: </label>QA76  / dav