Interactive backboard

What is exactly interactive backboard? Interactive backboard is large interactive area to witch is connected computer and data operator. Operator project image from computer to the top of the backboard and there we can control computer by a finger, special marker or another tools. Backboard is mostly fixed to the wall or can stay on the stool. It is kind of touch screen.
           Interactive backboard can be connect to computer by USB port, serial port or Bluethoot. Mostly is program instal in computer. Program start when is computer on and backboard automaticly communicate with it.

           Interactive backboard are on our school from 2010. When school join to project for reconstruction and modernization. This backboard are not in all classes, but most teachers and mainly students would be appreciated of course. There are just three