Who can explain to me the meanings of insert, home and end end on the keyboard?

Insert: insert. Press this key, the input content will automatically replace the later content, and press it again to restore the original state.

Home page: Start. When the cursor is anywhere in the document, press the Home key and the cursor will return to the beginning of the line.

End: end. Contrary to Home, the cursor returns to the end of the line.

Handmade, I hope I am satisfied.