Light Pens
Light pens are devices that emit a beam of light that can be used to draw or write on a surface. They were once popular for use with computers, but have since been replaced by other input devices such as touchscreens and trackpads.
What is a Light Pen? How it works, Types, and History!
What is a light pen? It's a device that increases your accuracy when using a screen. Find here which is the best for you.