Short essay on four components of an information system

In a formal 250 – 500 word essay, describe the four components of an information system. Why is it important to consider each of them when designing and installing an information system?  

Your essay should include an introductory paragraph and a conclusion.

Follow APA format for structure.  Support your essay with 2 to 3 credible references beyond the course materials.  Please note Wikipedia, Investopedia and similar websites are not credible academic references.

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