A variable valve operating system for an internal combustion engine that has a plurality of electromagnetic actuators for the intake and exhaust valves in a multi-cylinder engine. In at least one embodiment the semiconductor chip laboratory has a semiconductor sensor chip, which provides numerous analytical positions for biochemical samples in a matrix. An important aspect of the invention lies in the fact that the serially connected computer system transmits data traffic between the main computer and a partner, the serially connected computer imitating the address properties of the main computer in relation to the partner andor the address properties of the partner in relation to the main computer. A determination is made as to which of the recipients in the first area are members of a notification system and have submitted contact paths to the notification system.