Examlex
Marketing information systems rely heavily on:
Symbolic Language
Symbolic language is a system of communication using symbols or a series of symbols to represent ideas, concepts, or objects.
Output Field Devices
Devices that receive electrical signals from a control system and perform actions, such as valves, lights, or motors.
Output Module
A component of a PLC or other control system that provides the interface for output signals to external devices or equipments.
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