A system that provide information to people in an organization is called information system. the product of system analysis and design is an information system analysis and design is an information system. many information system use computer system for manipulating that information and are sometime called computer based information system.
information system is an organization capture and manage data to produce userfull information,support an organization and its employee,customer, supplier. the information system production information by using data about significant people thing from within organization or form external environment.
the three activities to produce the information in information system are:
a) Input: Input capture or collect raw data from within the organization or form its external environment for processing.
b)processing :processing convert these raw data into meaningful information.
c)output:output-transfer the information to the people who will are it to all activity for which it will be used.
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