Which of the following is/are pointing device/devices?
1. Trackball
2. Touchscreen
Select the correct answer using the code given below.

A pointing device is an input interface that allows a user to control a pointer or cursor on a screen to interact with a Graphical User Interface (GUI).

• Trackball: It is a pointing device consisting of a ball held by a socket containing sensors to detect rotation. The user rolls the ball with their thumb or fingers to move the cursor while the device remains stationary.
• Touchscreen: It is an input device that allows users to interact with a computer by touching the display area. It functions as a pointing device because the point of contact (finger or stylus) determines the coordinates for the cursor or action on the screen.

Common examples of pointing devices include the mouse, touchpad, joystick, and light pen. Since both trackballs and touchscreens are used to control on-screen pointers, both are classified as pointing devices.