Patent ID: 7590877
Filing Date: 2009-09-15
Classification: G06F

Abstract:
1. A computer system having a multi-operating system (OS), comprising: a central processing unit (CPU); an input part configured to control an instant-on function (IOF) by a user; a main memory divided into a first area that stores an embedded OS (EOS) for execution of the IOF and a second area that stores a normal OS (NOS) for normal system operation; a hard disk drive (HDD) that stores the normal OS, the embedded OS, and a boot loader capable of loading said OS to the main memory; and a normal OS loader that controls the loading of the normal OS and switches from the EOS to the NOS without turning off the CPU, wherein the IOF to perform a function by executing the embedded OS prior to the computer system booting or executing the normal OS for normal system operation, wherein the normal OS loader controls the loading of the normal OS and switches to the normal OS under the embedded OS when the IOF is selected.