This appliance allows people in different locations to share the same message board. Each person in the group has a flat screen about the size of a sheet of paper. Writing or drawing on the screen with a special pen makes "ink" appear. What anyone writes appears on their own screen, and is also sent to the screens of all the other members of their group within a minute or two. In addition, you can share snapshots, drawings, newspaper clippings, etc., simply by passing them through a slot on the bottom of the screen. There can be a separate shared board for each pair or group you are a part of − you can switch between groups with a press of a button.
Source: Hindus, D., Mainwaring, S. D., Leduc, N., Hagström, A. E., and Bayley, O. 2001. Casablanca: Designing Social Communication Devices for the Home. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI’01). ACM Press, 325–332.
