Ratzan, Lee. <br/><br/>
Understanding information systems  what they do and why we need them /  [electronic resource] : 
Lee Ratzan. 
 - Chicago :  American Library Association,  2004. 
 - xvi, 253 p. :  ill. 
<br/><br/>Includes bibliographical references (p. 237-245) and index. 
<br/><br/>Describing information -- Representing information -- Organizing information -- Retrieving information -- Networking information -- Securing information -- Concealing information -- Measuring information -- Counting information -- Numbering information -- Managing information -- The computer as an information system -- The Internet as an information system -- Music as an information system -- Interpreting information : numbers as meanings -- Counter-intuitive information. 
<br/><br/><br/>Electronic reproduction. Ann Arbor, MI : ProQuest, 2015. Available via World Wide Web. Access may be limited to ProQuest affiliated libraries. 
<br/><br/><label>ISBN: </label>
<br/><br/><label>LCCN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Information science.<br/>Information storage and retrieval systems.<br/>Computer science--Popular works.<br/>Mathematics--Popular works.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Electronic books.
<br/><br/><label>LC Class. No.: </label>Z665  / .R366 2004 
<br/><br/><label>Dewey Class. No.: </label>020