An air conditioning unit in a car is being controlled by a microprocessor and a number of sensors.
a) Describe the main differences between control and monitoring of a process.
b) Describe how the sensors and microprocessor would be used to control the air conditioning unit in the car.
Name at least two different sensors that might be used and explain the role of positive feedback in your description.
You might find drawing a diagram of your intended process to be helpful.