Texas Instruments TI-85 ViewScreen

The TI-85 ViewScreen is the teacher version of the standard TI-85. It connects with a special port permanently to a ViewScreen panel via a flat-ribbon cable. Placing the panel on the overhead projector enlarges the image of the handheld screen so that each student can follow along. From a technical point of view the TI-85 VSC is almost identical with the students TI-85. The main difference you notice is a two piece bottom shell of the calculator housing to accommodate the ViewScreen electronics.