BIOS startup process computer is powered running, the detection hardware: spy, memory, hard disk + BIOS reads the parameters in the CMOS memory, select the boot device reads the contents of the first sector from the boot device (MBR master boot record 512 byte, the front guide information 446, the partition information 64, the last two of the bootloader flag partition boot loader module according to the read information, and then starts the operating system asks the BIOS operating system, in order to obtain configuration information for each device, the system checks that the device driver is present, and if not, the system will ask the user. Once you have all of the device drivers, operating systems, they will be transferred in accordance with the kernel device driver and then related to the initial form (such as process table ), through the required process member, and start the login program or GUIBIOS (basic input output system) in each terminal, the install (installation, placement), boot (start), remarkable unusual), briefly (temporarily, briefly ground) Blos software required to perform a number of different characters, but the most important task is to load the operating system Blos software requires many different people to perform, but the most important task is to load the operating systemFlash Memory (flash memory), CPU (central processing unit) Microprocessor (microprocessor), PC (personal computer), Setup (setup program) .Configuration memory (CMOS memory settings)