How to use the Ubuntu operating system?

The steps to use the Ubuntu system are as follows:

1. Download the Ubuntu system image file from the official website (https://ubuntu.com/download) according to your needs, choosing the appropriate version (such as desktop or server) and image file.
2. Write the downloaded image file onto a USB flash drive or DVD disc for system installation.
3. Insert the USB flash drive or DVD disc into the computer where you want to install the Ubuntu system, and then restart the computer.
4. Press the corresponding key (usually F2, F12, or Delete key) when the computer starts up to enter the BIOS settings interface. In the boot options, set the USB flash drive or DVD disc as the preferred boot device.
5. Save the settings and exit the BIOS setup interface, the computer will boot from a USB flash drive or DVD disc.
6. Choose the appropriate language and keyboard layout in the Ubuntu installation interface, then click on the “Install Ubuntu” button.
7. During the installation process, follow the prompts to make settings, including choosing the installation type (such as dual system installation or whole disk installation), creating a username and password, etc.
8. After the installation is completed, restart the computer. Choose the Ubuntu system from the boot menu and enter the system.
9. In the Ubuntu operating system, you can access various applications through the application menu. You can also personalize the system through system settings, such as changing the desktop background or installing new software.
10. In Ubuntu system, command line operations can be executed through the Terminal. The Terminal can be opened by pressing the Ctrl+Alt+T keys.

I hope the above steps are helpful to you!