Focus on the processing of your computer CPU does not lack. The CPU is a control device, whether it is a device that is on a computer or peripheral device attached together with the computer.
The heart of the computer processor. As such, the computer CPU not CPU controls the operation of the equipment. Whether the device is in your computer. Or peripheral connected with computer.
The heart in the processing of the computer. The computer is not lack of CPU CPU controls the function of the equipment. Whether the device is in the computer. Or peripheral with computer.