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Hello everyone, in this lesson we will briefly introduce the BIOS

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BIOS is the most critical software in the computer.

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It is also called the basic input output system and is the first software loaded when the computer is turned on.

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It is mainly used to realize the lowest-level control of the hardware,

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including the basic control program of the hardware and the self-test program

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The startup items we need to adjust when installing the system are controlled by the BIOS,

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and we need to adjust them under the BIOS interface.

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But the BIOS does not only have this interface.

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When the computer is turned on, it will read the BIOS and perform a self-test.

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The BIOS chip is the ROM chip used to carry the BIOS.

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For example, if the system is installed in the hard disk, then the BIOS is installed in the BIOS chip

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In maintenance, we generally get used to referring to the BIOS chip as BIOS

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If the BIOS is damaged, it will cause various failures

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Basically, all computer failures may be caused by BIOS damage.

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However, the most classic faults it causes are not running codes and blocking codes