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BIOS是“基本输入输出系统”的意思。ROM BIOS则是固化在芯片中,已预装在计算机内的系统软件,它对系统中主要的I/O设备提供底层的控制。ROM中的内容是不能改变的,但计算机系统硬件配置是可变的,日期和时间也是可变的,它们被存储在一个非易失性存储器——CMOS RAM中,由充电电池供电,保证CMOS中的信息不会丢失。设置(SETUP)程序就是制定并修改CMOS数据的软件。通过CMOS设置,对系统硬件资源进行初始化,同时直接影响着机器性能的发挥。早期的XT、AT机型大多没有在ROM BIOS中配备设置程序,需用DIP开关或专门的设置诊断盘来进行设置。现在市场上的286以上的微机基本上都带有BIOS SETUP程序,将设置程序与系统BIOS固化在一
BIOS is “basic input output system ” means. The ROM BIOS is a system software that has been pre-installed on the chip and pre-installed in the computer to provide low-level control of the main I / O devices in the system. The contents of ROM can not be changed, but the computer system hardware configuration is variable, the date and time are also variable, they are stored in a non-volatile memory - CMOS RAM, powered by rechargeable batteries to ensure CMOS The information in is not lost. Setup (SETUP) program is to develop and modify the CMOS data software. Through the CMOS settings, initialize the system hardware resources, and directly affect the performance of the machine. Early XT, AT models are mostly not equipped with ROM BIOS settings in the program, need to use the DIP switch or a dedicated diagnostic disk settings. Now on the market more than 286 computers are basically equipped with BIOS SETUP procedures will be set up with the system BIOS curing in a