What is the BIOS of the xp system and how much is it?

  
The BIOS is a set of computer programs that set up the hardware and is stored in a ROM chip on the motherboard. Unlike CMOS, CMOS is a readable and writable RAM chip on the computer motherboard that is used to save the current system hardware configuration and user settings for certain parameters. The CMOS chip is powered by a rechargeable battery on the motherboard, and the parameters are not lost even if the system is powered down. The CMOS chip only has the function of saving data, and the modification of various parameters in the CMOS is implemented by the BIOS setting program. So we say that BOIS is the cornerstone of computers.
I believe that friends who use computers frequently must have heard of the word BIOS, but many people don’t know what bois is. When I hear people say how much their computer BIOS is brushing, I always do it. It is not clear what it means. Today Xiaobian will take you to learn what the BIOS is.
First of all, strictly speaking, BIOS is not a real word, but an acronym for four words, they are BOIS= Basic Input/Output System, which means basic input and output system, the full name is ROM-BOIS. It is a shorthand for the basic input/output system of read-only memory. The setup program is a set of programs that are solidified into the CMOS chip on the computer motherboard. Its main function is to provide the lowest-level and most direct hardware setting and control for the computer. In layman's terms, BOIS is a "converter" between hardware and software programs, or an interface (although it is just a program itself), responsible for solving the real-time requirements of the hardware, and according to the hardware requirements for the operation of the hardware. carried out. The BIOS can only be set up at boot time. It mainly manages and sets the basic input/output system of the trick to make the system run in the best state. The BIOS setup program can be used to eliminate system faults or diagnose system problems.
BOIS is a software system attached to the system that determines the basic functions of the machine before the computer has access to the program on the disk. What is BOIS for PCs? It contains code for controlling keyboards, display screens, disk drives, serial communication devices and many other features. The general BOIS ROM chip (so called ROM BOIS) stored on the motherboard ensures the general availability of BOIS and is not damaged by disk errors. It also ensures that the machine can be started. Because RAM is faster than ROM, BOIS designed by many machine manufacturers can be copied from ROM to RAM when the machine is booted. This technology is also called shadowing. Today, in many PCs, it is flash BOIS, thinking that this BOIS is stored in a rewritable flash memory chip, and it is effortless to rewrite if necessary.
Now that the BIOS is what we already know, let's talk about its role in the whole computer.
BIOS can be regarded as the cornerstone of computer startup and operation. The computer failures that you often encounter are closely related to the BIOS settings. For example, your BIOS does not recognize some new hardware at all or the support for the current operating system is not perfect. In this case, only reset the BIOS or upgrade the BIOS to solve the problem. In addition, if you want to increase the startup speed, you need to make some adjustments to the BIOS to achieve the purpose, such as adjusting the hardware startup sequence, reducing the detection items at startup, and so on.
The above is what the editor wrote and what the impact is. Of course, the powerful BIOS is definitely not a few words here, so if you want to learn more about the BIOS, you need to work hard.

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