Exploring Computers and Their Uses

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Computers for Organizations
Network Servers
Mainframe Computers
Minicomputers
Supercomputers
Computers in Society

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  • Teaching tip
    Students have a hard time understanding trillions of calculations. A simple explanation is to add 1 trillion random numbers together in a second. Contrast the speed of a super computer to the fastest desktop computer advertised during the week of class.
  • Insider information
    Specialized mountain bikes are designed on Sun workstations.
  • Exploring Computers and Their Uses

    1. 1. Exploring Computers and Their Uses Company LOGO
    2. 2. Lecture 02: Roadmap  Computers for Organizations     Network Servers Mainframe Computers Minicomputers Supercomputers  Computers in Society 1A-2
    3. 3. Computers For Organizations  Network servers      Centralized computer All other computers connect Provides access to network resources Multiple servers are called server farms Often simply a powerful desktop 1A-3
    4. 4. Computers For Organizations  Minicomputers       Called midrange computers Power between mainframe a and desktop Handle hundreds of users Used in smaller organizations Users access through a terminal 1A-4
    5. 5. Computers For Organizations  Mainframes     Used in large organizations Handle hundreds or thousands of users Store tremendous amount of data. Users access through a terminal 1A-5
    6. 6. Computers For Organizations  Supercomputers        The most fastest, expensive and powerful computers Can execute 100 trillion instructions in single sec. Weight is 100 tons. Store 20,000 times more data than desktop. Handle large and complex calculations Process trillions of operations per second Found in research organizations, Nuclear energy research. 1A-6
    7. 7. Cont. 1A-7
    8. 8. Computers In Society  More impact than any other invention   Changed work and leisure activities Used by all demographic groups  Computers are important because:    Provide information to users Information is critical to our society Managing information is difficult 1A-8
    9. 9. Computer in Society  Computers at home    Many homes have multiple computers Most American homes have Internet Computers are used for      Business Budgeting and financial mangment Entertainment Communication Education 1A-9
    10. 10. Computers In Society  Computers in education  Computer literacy required at all levels  Computers in small business   Makes businesses more profitable Allows owners to manage  Computers in industry   Computers are used to design products Computer aided Manufacturing(CAM) 1A-10
    11. 11. Computers In Society       Computers for Mobile Users Computers for power users Computers for large business users. Computers for traveling Computers for publishing Computers in Finance Example Online Banking 1A-11
    12. 12. Computers In Society  Computers in government  Necessary to track data for population  Police officers  Tax calculation and collection  Governments were the first computer users 1A-12
    13. 13. Computers In Society  Computers in health care     Revolutionized health care New treatments possible Scheduling of patients has improved Delivery of medicine is safer 1A-13
    14. 14. 1A-14

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