In the diagram, what type of device is the CPU?

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Multiple Choice

In the diagram, what type of device is the CPU?

The key idea here is that the CPU acts as the brain of an IoT system. It runs software, processes data from sensors, and makes decisions that determine what actions should happen next. It doesn’t sense the environment itself—that role belongs to a sensor—and it doesn’t generate physical movement or act on the world by itself—that’s the job of an actuator. Instead, it coordinates everything by issuing control signals to actuators based on the data it processes. That makes the CPU the control element in the diagram.

The key idea here is that the CPU acts as the brain of an IoT system. It runs software, processes data from sensors, and makes decisions that determine what actions should happen next. It doesn’t sense the environment itself—that role belongs to a sensor—and it doesn’t generate physical movement or act on the world by itself—that’s the job of an actuator. Instead, it coordinates everything by issuing control signals to actuators based on the data it processes. That makes the CPU the control element in the diagram.

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