Differences and connections between BIOS settings and CMOS settings

When you operate or repair your computer on weekdays, you can often hear some statements about BIOS settings and CMOS settings, and many people don't know much about BIOS and CMOS, or even confuse the two. Today you master the differences and connections between BIOS settings and CMOS settings.

BIOS is an EPROM or EEPROM chip on the motherboard, which contains important information of the system and Setup program of setting system parameters (Biossetup program); CMOS is a read-write RAM chip on the motherboard that contains specific parameters for the configuration of the system, which can be read and written by the Setup program. The Cmosram chip is powered by a back-up battery, and the information is not lost even after the system loses power. BIOS and CMOS are both relevant and different: The System Setup program in the BIOS is the means to complete the CMOS parameter setting; Cmosram is not only the storage place of the BIOS setting system parameters, but also 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 related to the system setup, so in the actual use of the process caused the BIOS settings and CMOS settings, in fact, refers to the same thing, but the BIOS and CMOS is two a completely different concept, must not be confused.