The box is the most common implementation of interactive multimedia: a single monitor (with perhaps a larger slave monitor) with some sort of input device. It is a very self contained exhibit experience. The box is at its best when used by a single visitor, though a well designed box exhibit will easily accommodate groups of up to five or six. Boxes can be seamlessly integrated into the overall exhibit space, though often they seem like discontinuous portals into another world. There are a variety of ways to provide a group interaction. They vary in degree of interactivity, style of interaction, and system complexity (which usually correlates to price and reliability