What does the computer BIOS mean?

The BIOS is the English "basic Input Output system" abbreviation, after literal translation after the Chinese name is "the basic input to export systems". Its full name should be Rom-bios, which means read-only memory basic input and output system. In fact, it is a group of curing to the computer motherboard on the previous ROM chip program, it holds the computer's most important basic input and output of the program, system settings information, power-on on the Self-Test program and the system to start the bootstrap process.

Its main function is to provide the lowest, most direct hardware setup and control for the computer. The BIOS setup program is stored in the BIOS chip and can only be set when it is powered on. CMOS is primarily used to store the parameters and data set by the BIOS setup program, and the BIOS setup program mainly manages and sets the basic input and output system of the technique, which enables the system to run in the best state, using the BIOS setup program to troubleshoot the system or diagnose system problems.

Some people think that since the BIOS is a "program", it should belong to the software, it feels like its own commonly used Word or Excel. However, many people do not think so, because it is different from the general software, and its connection with the hardware is quite close. Figuratively speaking, the BIOS should be connected to the software program and hardware equipment, a "bridge" to solve the real-time hardware requirements. A motherboard performance is superior or not, largely depends on the BIOS program management function is reasonable, advanced. The BIOS chip on the motherboard may be the only labeled chip on the motherboard, which is typically a 32-pin dual-row inline integrated circuit with the words "BIOS" printed on it. 586 the previous BIOS is more than the rewritable EPROM chip, the above label plays a role in protecting the BIOS content (ultraviolet irradiation will make the content of EPROM lost), can not be torn off. 586 ROM BIOS after the use of EEPROM (electric erasable read ROM), through the jumper switch and system with the driver tray, you can rewrite the EEPROM, easy to achieve BIOS upgrades.

Computer users in the process of using the computer, will be exposed to the BIOS, it plays a very important role in the computer system. Whether a motherboard is superior in performance or not depends largely on the advanced BIOS management features on the motherboard.

The BIOS chip is a rectangular or square chip on the motherboard, which is mainly stored in the BIOS:

Self-Diagnostics: Identify the hardware configuration and self-test and initialize it by reading the contents of the CMOS RAM;

CMOS Setup program: In the process of guidance, Jinan computer maintenance, with a special hot key to start, after setting, into the CMOS ram;

System Bootstrap loader: After the success of the self-test, the disk relative to the 0-Channel 0-Sector boot program into memory, let it run to load the DOS system;

Driver and interrupt Service for primary I/O devices;

Because the BIOS directly deals with system hardware resources, so always for a certain type of hardware system, and a variety of hardware systems are different, so there are a variety of different kinds of bios, with the development of hardware technology, the same BIOS has appeared in different versions, the new version of the BIOS than the old version, More powerful.