009 Embedded Linux-ARM. StorageQueries and discussion related to usage of Linux on ARM based devices. Linux has been ported to a variety of CPUs which are not only primarily used as the processor of a desktop or server computer, but also ARM, AVR32, ETRAX CRIS, FR-V, H8300, IP7000, m68k, MIPS, mn10300, SuperH, and Xtensa processors, It is also used as an alternative to using a proprietary operating system and toolchain. » 009.01.Linux Boot Process » 009.01.20.BIOS CMOS UEFI. IQs
009.01.20.4. Can you describe the role and significance of the CMOS chip in a computer system, particularly in relation to storing system settings and the impact of the CMOS battery on these settings?
A CMOS chip stores the settings like date and time, fan speed, booting sequence, custom settings for devices and peripherals. These settings are retained in the CMOS chip and are volatile. This chip requires a power supply from a CMOS battery to hold the custom settings. If the battery is unplugged from the motherboard, the CMOS will reset the settings to the stored default settings in the BIOS chip. The CMOS battery issues are:-
Date and time showing old date instead of current date and time.
Peripheral such as mouse and keyboard behaving strangely.
