O'Leary, Daniel  A. <br/><br/>
Computing essentials :  making IT work for you / 
Daniel A. O'Leary , Timothy J. O'Leary, Linda I. O'Leary  
 - xxx, 390 pages :  color illustrations ;  28 cm. 
<br/><br/> Includes index. 
<br/><br/>Information technology, the internet and you -- The internet, the web and electronic commerce -- Application software -- System software -- The system unit -- Input and output -- Secondary storage -- Communications and networks -- Privacy, security and ethics -- Information systems -- Databases -- Systems analysis and design -- Programming and languages. 
<br/><br/><label>ISBN: </label>9781265263218 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic data processing
<br/><br/><label>LC Class. No.: </label>SHS QA 76.5 O44 2023