Definition of "information system" []

• Any data processing system, either manual or computerized (noun)
• Any telecommunications system whose primary function is to transmit and/or display data (noun)

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• "Nonetheless, Johnson and Rostow maintained the three core elements of the Kennedy-Bundy innovations: the adviser handling the presidents day-to-day foreign affairs business; the staff recruited to serve the current administration; and the communications and information system centered in the Situation Room."
• "The final case describes how the “Thai Farmers Bank” makes a majorinvestment in a computerized information system to overcome the competitive disadvantage caused by a rival’s institution of an automatic teller system."