The following option which is NOT an example of an Information system is electrical system.
What is information system?
The system of hardware and software that are integrated to form a integrated system. This system allows information to transfer from one user end to another user.
Transaction processing, Expert system and Customer relationship management requires end to end encryption with information sharing. These are the information system except electrical system. The electrical system only supplies electricity to lighten up homes and industries.
Thus, Electrical system is not the information system.
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