Which of the following input devices uses a stylus or a pen to interact with a computer?
A. Touchpad
B. Joystick
C. Light pen
D. Trackball
Answer:C
Which of the following input devices uses a stylus or a pen to interact with a computer?
A. Touchpad B. Joystick C. Light pen D. Trackball
Explanation: A light pen is an input device that uses a light-sensitive detector to detect movements made by a stylus or pen. It is mainly used for graphics and design work.