Please talk about the functions of the keys that are not commonly used on the computer keyboard.

F 1-F 12 is the system key combination, and the specific situation is divided. PauseBreak is a pause key, which is often used to view startup information when the computer starts. Home is the first line, and it is the Print Screen SysRq screenshot key. This function is very practical, and it can be used with software such as drawing and word. Example: Intercept the whole computer screen, press the print screen SysRq key, open the drawing tool and choose Edit-Paste, or paste it directly into a word file.