What is the use of the button battery on the computer?
Will not automatically shut down, mainly from the motherboard to remove the role, such as the motherboard inside the set and system time.
When the power is not enough, the time will return to the factory date, there are records to start using the hardware information, that is, to maintain the CMOS BIOS information.
Used to record the time of the computer system, that is, to maintain the accuracy of the system clock.
