计算机主板采用一种称为互补金属氧化物(CMOS)存储器来存储系统配置和设置。它由一个镍镉电池来供电,以保证计算机断电后,CMOS信息得以保存。CMOS数据包括硬盘参数、软驱类型、存储器配置、I/O接口、中断设置、外部设备、能源管理等,电脑启动时要读取CMOS信息,并按此信息来自检硬件,并设置系统,然后再引导系统。 Computer motherboards use a device called complementary metal oxide (CMOS) memory to store system configuration and settings. It is powered by a nickel-cadmium battery to ensure that CMOS information is preserved when the computer is powered down. CMOS data, including hard disk parameters, floppy drive type, memory configuration, I / O interface, interrupt settings, external devices, energy management, etc., the computer starts to read CMOS information, and press this information to test the hardware and set the system, and then Boot the system.