Η company Dell has built a touch screen capable of standing as a blackboard in a school or conference room.
Forget the blackboards in the classroom. OR Dell released an 70-inch touchscreen, the C7017T model, designed to replace interactive boards in schools and meeting rooms.
The device has analysis 1080p and can accept commands from all ten fingers of a user but also from two special pens. It's much more compact than Microsoft's 84-inch Surface Hub
Η price hers is $5000 and is probably high enough for a typical public school budget.