A control system typically comprises of a computer or microprocessor [microprocessor: an integrated circuit that contains all or most of the individual elements of a central processing unit (CPU) ], a control program [program: a list of instructions written in a programming language ] which handles data [data: information without context, eg a list of students with numbers beside their names is data, when it's made clear that those numbers represent their placing in a 100 metre race, the data becomes information ] from sensors [sensor: an automatic input device that continuously monitors a set of computer controlled parameters, eg a parking sensor detects how close a vehicle is to the nearest object and alerts the driver if the distance falls outside of the specified parameters ] and sends signals to output devices [output device: a device used to output data or information from a computer, eg a monitor, printer or speakers ] and an interface box to convert signals between the sensors and the processor [processor: shorthand for central processing unit (CPU) ].
Computers are now used to control many types of devices such as:
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