CMOS is a Computer Chip on the motherboard, which is :

Answer:

The CMOS chip on the motherboard refers to a small amount of battery-backed volatile memory (commonly called CMOS RAM) that stores BIOS/UEFI configuration settings.

• CMOS stands for complementary metal–oxide–semiconductor, a technology used to build the chip.

• The chip stores system configuration settings (date/time, boot order, hardware parameters) in a small battery-backed RAM area so settings persist when the PC is powered off.

• This is different from ROM/EPROM (non-volatile firmware storage) and from auxiliary/secondary storage (disks or SSDs). Modern systems often store firmware in flash memory, while configuration settings may be kept in NVRAM/UEFI variables rather than the older CMOS RAM implementation.

• Therefore, describing the CMOS chip as RAM (battery-backed configuration memory) is the most accurate choice.