10 Lines Essay on Light Pen in English for Students

  1. A light pen is a computer input device. 
  2. It is light-sensitive.
  3. It is used as a stylus.
  4. It is also called a ‘laser pen’.
  5. It is a flash-light type device.
  6. It is used to select text, draw, and write on a computer screen or monitor.
  7. Alternatively, light pens could also denote the laser device used to point during presentations.
  8. It was first invented by Ben Gurly. 
  9. This was in the year 1959.
  10. With the advent of touch screens, they are no longer in use today.