The present invention provides a system with a separate computing unit, comprising: a primary computing device comprising a computing unit, a control interface unit via which a user enters an instruction that causes the computing unit to perform the processing operation or the computing operation to generate an instruction code, and a first wireless communication unit transmitting a first wireless signal containing the instruction code and a remote control device comprising an instruction implementation unit, and a second wireless communication unit receiving the first wireless signal and sending the instruction code in the first wireless signal to the instruction implementation unit to implement the instruction code wherein the operation of the instruction implementation unit of the remote control device is controlled by the instruction code.