A fluid processing apparatus having a plurality of processing spaces includes a plurality of containers juxtaposed in a direction to each other forming processing spaces respectively therein. User generated competition groups and system generated competition groups allow users to participate in multiple competitions at once based on answering the same questions or making the same selections related to a single event. An external device can send a mode setting command to the first controller through the first communication port. The combination of wedge guides and pin actuator takes advantage of the relatively large lateral dimensions of the wafer chuck to move the pin actuator between end positions that are in a distance multiple of the pin lifters movement. The method includes sensing vibration of the dynamic surface, and activating the at least one piezoelectric actuator after sensing vibration of the dynamic surface for applying a counter force between the dynamic surface and the mass for reducing or controlling vibration of the dynamic surface.