O'LEARY, Timothy J. <br/><br/>
Computing essentials 

 - New York  Irwin. Mc Graw Hill  1999 
 - xvii, 273p 
<br/><br/><label>ISBN: </label>0075610469 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computing essentials<br/>System Software<br/>Computing
<br/><br/><label>Dewey Class. No.: </label>4