The invention relates to a compounder comprising a mixing unit, which can be mechanically driven by a drive module and is provided with one or more feed devices for the material to be processed and one or more additives that are to be mixed with this material. Alternatively, the same bitloading may be applied to several or all of the subsets of an MC group. A liquid crystal array is disposed in either the reflected or transmitted beam. The switch controller controls the states of the switches in response to control information representative of the source and the destination of each bus transaction. COMs include messages that are automatically sent based on a delivery. The online game can be virtual world representative of at least two of a northern continent, a western continent, a southern continent, a central continent, and an eastern continent.