Automation seems to be a very complicated process. But really it is just a way of having machines do work without human operators controlling the machines every moment they are running. In other words, an automated system is a system that works by itself. Every automated system has two parts— a machine (or many machines) that does the work, and another machine that controls the first one.
The simplest automated system is the light bulb in your refrigerator. The light bulb does the work— lighting up the refrigerator. The little button that pops out when you open the door is the control. It is connected to the light and it "tells" the light what to do.
Another automated system is a mechanical dishwasher. Inside the cabinet is a machine that washes the dishes, rinses them, and dries them. Also inside the cabinet is a device that "tells" the machine what to do and when to do it. What good would it do if the machine dried the dishes before it washed them?
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