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What is an information system? How does it work? What are its people, organizational, and technological components? List and describe the people, organizational, and technological components.
Any written, electronic, or graphical method of communicating information. The basis of an information system is the sharing and processing of information and ideas. [ Computers and telecommunication technologies have become essential information system components. The 'classic' view of Information systems found in the textbooks[30] of the 1980s was of a pyramid of systems that reflected the
hierarchy of the organization, usually Transaction processing systems at the bottom of the pyramid, followed by Management information systems, Decision support systems and ending with Executive information systems at the top. Although the pyramid model remains useful, since it was first formulated a number of new technologies have been developed and new categories of information systems have emerged, some of which no longer fit easily into the original pyramid model. Some examples of such systems are: * Data warehouses * Enterprise resource planning * Enterprise systems * Expert systems * Geographic information system * Global information system * Office Automation The main components of information systems are computer hardware and software, databases, telecommunications systems, human resources, and procedure ]
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Asked 4/18/2011 9:58:20 PM
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