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Information Systems Defined

Learn about information systems components, functions, types, users, ethical use, and benefits. Discover how data is processed, different types of information systems, including LAN, WAN, and international networks, and the advantages they bring to business operations and management.

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Information Systems Defined

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  1. Information Systems Defined www.assignmentpoint.com

  2. Information Systems Defined • A collection of components that work together to provide information to help in business operations and management. • Functions: • Input • Storage • Processing • Output www.assignmentpoint.com

  3. Information System Functions www.assignmentpoint.com

  4. Data vs. Information • Data is a representation of a: • Word • Number • Image • Picture • Sound • Information is data that is meaningful to someone www.assignmentpoint.com

  5. How an Information System Processes Data www.assignmentpoint.com

  6. Types of Information Systems • Individual information systems - affects a single person • Examples: • Word processing software used to prepare written documents • Spreadsheet software used for financial analysis • Graphics software used for presentations • Personal database software for sales analysis www.assignmentpoint.com

  7. Types of Information Systems (cont’d) • Workgroup information systems - affects a group of individuals who work together • Examples: • Electronic mail (email) • Information sharing system www.assignmentpoint.com

  8. Types of Information Systems (cont’d) • Organizational information systems - affects people throughout a business or organization • Examples: • Payroll systems • Automatic teller machines (ATMs) www.assignmentpoint.com

  9. Types of Information Systems (cont’d) • Interorganizational information systems - functions among several organizations • Examples: • Electronic data interchange (EDI) • Electronic funds transfer (EFT) www.assignmentpoint.com

  10. Types of Information Systems (cont’d) • International information systems - spans international borders • Example: • International production scheduling system www.assignmentpoint.com

  11. Information Systems Users • Users enter input data directly or indirectly • Examples of direct input: pressing keys on a keyboard, touch screens, barcode scanners • Examples of indirect input: giving data to a clerical person to enter • Users must be ethical access to computer systems will be restricted to a few people www.assignmentpoint.com

  12. ETHICAL USE OF IS • Gain access to personal data • Copying software or piracy • Use IS to steal money, credit card forgery • Sometimes IS cause ethical dilemma www.assignmentpoint.com SOURCE: Liker, et al, 1987

  13. Connecting Users to ITNetworks • Network: a collection of computers and related equipment connected electronically in order to communicate with each other. • Networks connect users to information technology • Network types: Local Area Network (LAN), Wide Area Network (WAN), International WAN (e.g., the Internet) www.assignmentpoint.com

  14. Local Area Network (LAN) • A LAN usually connects users in the same building or buildings next to each other. www.assignmentpoint.com

  15. Wide Area Network (WAN) • A WAN usually connects users in the city, region, or country. www.assignmentpoint.com

  16. International WAN • The Internet is a worldwide collection of interconnected networks that allow users to access information technology. • Example: Locating information via the World Wide Web. www.assignmentpoint.com

  17. International WAN/Internet www.assignmentpoint.com

  18. Information Systems Benefits • Providing better information for better decision making • Improving service for customers • Improving productivity to allow people to accomplish more in a period of time. www.assignmentpoint.com

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