a) Highlight five characteristics of information. (5 marks)

b) Systems are designed, implemented and managed using models which are abstractions of reality which allow people to apply principles that are assumed to hold true for many different types of systems.

With reference to the above statement and citing examples,identify four system models.
(8 marks)

c)Explain the term “computer system” and outline six logical units of a computer system.
(7 marks)

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