Long, Larry E. <br/><br/>
Introduction to computers and information systems / 
Larry Long. 
 - 4th ed. 
 - Englewood Cliffs, N. J. :  Prentice-Hall International,  1994. 
 - 462 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0130979813 (pbk.)  RM98.43 9780130979810 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic digital computers.<br/>Electronic data processing.