Understand the connection and difference between BIOS and CMOS

Many users think that BIOS and CMOS are the same concept. Although the two are closely related, in fact, there is still a difference between the two. Below the system home Xiaobian, let's take a look at it and see the connection between BIOS and CMOS. the difference. The BIOS is an abbreviation of English "Basic Input Output System". After the translation, the Chinese name is "Basic Input and Output System". In fact, it is a set of programs that are solidified onto a ROM chip on the motherboard of the computer. It stores the most important basic input and output programs, system setting information, self-test program after booting, and system self-starting program. Its main function is to provide the lowest level of hardware setup and control for the computer. CMOS is often used to store a computer's basic boot information (such as date, time, boot settings, etc.). Sometimes people will mix CMOS and BIOS. In fact, CMOS is a readable and writable RAM chip on the motherboard. It is used to save the BIOS hardware configuration and user settings for certain parameters. Generally speaking, BIOS refers to software, and CMOS refers to hardware. The setting of each parameter in the BIOS is through a special program. The BIOS setup program is generally integrated into the chip by the manufacturer. When booting, the BIOS setup program can be accessed through a specific button to conveniently set up the system. So BIOS settings are sometimes called CMOS settings. CMOS saves a lot of important setup information in the motherboard. If we want to modify the configuration inside it, we must modify it through the BIOS. This is their connection. This article comes from [System Home] www.xp85.com