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Processing Device

When a computer receives data from an input device (such as a keyboard, mouse, microphone, etc.), the data must go through an intermediate stage before it can be sent to an output device (like a monitor, printer, speakers, etc). A processing device is any device in a computer that handles this intermediate stage. For example, in the diagram below, the CPU is the processing device.

Input device (microphone), processing device (CPU), and output device (hard disk)

Some of the most common processing devices in a computer include the following:

Also see: Device, Hardware terms, Processing