What does computer security mean?

Computer security refers to the security option in BOIS, which refers to the security option and is related to the computer password; if the Security Option is set to System, the system will require a password before booting and entering the BIOS setup program.

#The operating environment of this article: Windows 7 system, Dell G3 computer.

What does computer security mean?

The security option in BOIS refers to the security option, which is related to the computer password.

When you select this function, the following message will appear:

Enter the password, up to eight characters, and then press the key. The password you enter now clears all previously entered CMOS passwords. You will be asked to enter your password again. Enter the password again and press the key. You can press the key to abandon this selection without entering a password.

To clear the password, just press the key when the window for entering the password pops up. The screen will display a confirmation message whether to disable the password. Once the password is disabled, after the system restarts, you can enter the setup process directly without entering the password.

Once you use the password function, you will be asked to enter your password each time before entering the BIOS setup program. This prevents any unauthorized person from changing your system's configuration information.

In addition, by enabling the system password feature, you can also make the BIOS require a password before each system boot. This prevents any unauthorized use of your computer. Users can enable this feature in the Security Option in Advanced BIOS Feature Settings. If the Security Option is set to System, the system will ask for a password before booting and entering the BIOS setup program. If set to Setup, the password is only required before entering the BIOS setup program.

Extended information:

BIOS is the abbreviation of the English "Basic Input Output System". The literal translation of the Chinese name is "Basic Input Output System" . On IBM PC-compatible systems, it is an industry-standard firmware interface. The term BIOS first appeared in the CP/M operating system in 1975. BIOS is the first software loaded when a personal computer starts up.

In fact, it is a set of programs solidified on a ROM chip on the motherboard of the computer. It stores the most important basic input and output programs of the computer, the self-test program after power-on, and the system self-startup program. Specific information about system settings can be read and written from CMOS. Its main function is to provide the lowest and most direct hardware settings and control for the computer. In addition, the BIOS also provides some system parameters to the operating system. Changes to system hardware are hidden by the BIOS, and programs use BIOS functions instead of directly controlling the hardware. Modern operating systems ignore the abstraction layer provided by the BIOS and control the hardware components directly.

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