A light pen is an input device
- Light pen is a mechanical input device
- A light pen is an electronic input device
- Light pen is an input device true or false
- Light pen is an input device or not
- Light pen is an input device or output
- Light pen is an example of a input device
- Is a light pen an optical input device
- Advantages of a light pen as an input device
- At last i see the light karaoke