Patent ID: 8601571

Claim:
A multi-user computer system, comprising: a remote controller, including: an input unit having at least one key and configured to receive a remote-control password to remotely operate a computer, information on an operating system (OS) to be booted when the remote-control password is input, a key input setting the computer in a mode in which the remote-control password and the OS information are set, and a key input operating the computer; a microprocessor configured to convert the remote-control password in the input unit, the OS information, the mode-setting key input, and the computer-operating key input, into a control signal; and a wireless transmitter configured to transmit the control signal; and a computer, including: a plurality of operating systems; a wireless receiver configured to receive the control signal transmitted by the remote controller to remotely operate the computer; a computer microprocessor configured to extract the remote-control password, the information on the OS, the input key for the setting mode, and the input key to operate the computer, and configured to control the computer power; a memory configured to store the remote-control password and the information on the OS; and a BIOS configured to automatically load an OS corresponding to the remote-control password stored in the memory when the received remote-control password stored in the wireless receiver and the remote-control password in the memory are the same and configured to store the remote-control password and the information on the OS in the memory when the computer is set in the mode in which the remote-control password and the OS information are set, wherein, when the mode-setting input key is present in the control signal, the computer microprocessors sets the computer in the mode in which the remote-control password and the OS information are set.