Differences and connections between BIOS settings and CMOS settings

The BIOS is an EPROM or EEPROM chip on the motherboard, which contains important information about the system and setup procedures for setting system parameters (BIOS setup program);

CMOS is a read-write RAM chip on the motherboard, which is equipped with the specific parameters of the system configuration, the contents of which can be read and written by the Setup program.

The CMOS RAM chip is powered by the back-up battery, and the information is not lost even after the system loses power.

BIOS is both relevant and different from CMOS:

The system Setup program in the BIOS is the means to complete the CMOS parameter setting;

CMOS RAM is both the location of the BIOS setting system parameters and the result of the BIOS setting system parameters.

Therefore, the complete argument should be "set the CMOS parameters through the BIOS setup program."

Since the BIOS and CMOS are closely related to the system settings, so in the actual use of the process caused by the BIOS setup and CMOS settings, actually refers to the same thing, but the BIOS and CMOS is two completely different concepts, must not be confused.

Differences and connections between BIOS settings and CMOS settings