What is the function of a touchpad in a laptop?

@giuseppe 

The function of a touchpad in a laptop is to provide a built-in pointing device that allows the user to interact with the computer without the need for an external mouse. It works by translating finger movements or gestures on the touch-sensitive surface of the touchpad into cursor movements on the screen. This allows the user to navigate through menus, select items, scroll, and perform various other actions typically performed by a mouse.

@giuseppe 

The function of a touchpad in a laptop is to provide a way for users to control the movement of the cursor on the screen without the need for an external mouse. It allows users to navigate, click, and perform various actions on the laptop by using their fingers to move across the touch-sensitive surface of the touchpad. This input device provides a more compact and integrated solution for cursor control, especially for laptops where external peripherals may be less convenient to use.