Information System

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Information System
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What is IS ?

• An organized set of components for collecting,
  processing, transmitting and storing data in
  order to deliver information for action.

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Examples

• Decision support system
• Transaction processing system
• Management reporting system

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Components of an IS

• Human resources
• Procedures
• Hardware
• Software
• Data
• Telecommunication

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Human Resources

• End-user
• IS specialists

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Procedures

• Polices and methods to be followed
• Comply with working habit of end-user to reduce
  operational errors and increase productivity

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Hardware resources

• All physical devices and materials used in
  information processing
• Computer system, peripheral devices, data media

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Software resources

• System software e.g. OS
• Application software e.g. application package,
  self-developed software

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Data resources

• Data Raw material of information systems
• Can take many form text, audio, image

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Telecommunication resources

• Communicate effectively with outside world
• Networking of computers
• Local area network(LAN)
• Wide area network (WAN)

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Phases of data processing

• Input
• Processing
• Output
• storage