What is Information System ?
An information system cab be defined technically as a set of inter related components that collect (or retrieve), process, store and distribute information to support decision making and control in an organization. In addition to supporting decision making, coordination and control, information systems any also help managers and workers analyze problems, visualize complex subjects, and create new product.
Information system contain information about significant people places, and things within the organization or in the environment surrounding it. By information we mean data that have been shaped into a form that is meaningful and useful to human beings. Data, in contrast, are streams of raw facts representing events occurring in organization or the physical environment before they have been organized and arranged into a form that people cab understand and use.
Three activities in an information system produce the information that organizations need to make decisions, control operations, analyze problems and create new products or services. These activities are input, processing, and output.
Input – Captures or collects raw data from within the organization or from its external environment.
Processing – Convert this raw input into a more meaningful form.
Output – Transfers the processed information to the people who will use it or to the activities for which it will be used. Information systems also require feedback, which is output that is returned to appropriate members of the organization to help them evaluate or correct the input stage.
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