Patent ID: 8370612

Claim:
A computer system with two operating devices, comprising: at least one operating interface; a first hidden operating device, which includes an operating system and a plurality of data and programs, and the first hidden operating device connected to the operating interface; a second hidden operating device, which is used to store the operating system and the plurality of data and programs of the first hidden operating device, and the second hidden operating device connected to the operating interface; a central processing unit (CPU), which receives at least one signal to control the first and the second hidden operating devices via a power supply module, and to perform computation on the operating system and the plurality of data and programs via the operating interface; a control module, which sends the signal to the central processing unit for controlling the power on/off of the first and the second hidden operating devices and when any one of the first and the second hidden operating device is turned off and hidden, the operating device and any application programs cannot locate the hidden operating device, and copy the contents of any one of the first and the second hidden operating devices to the other one of them; a basic input output system (BIOS) unit for booting the operating system on any one of the first and the second hidden operating device into a dynamic random access memory (DRAM) for running; and a decoder unit for decoding the BIOS unit, so that the BIOS unit can be used by the CPU wherein the first hidden operating device is selected from the group consisting of a HDD and a non-volatile memory, and wherein the second hidden operating device is a non-volatile memory.