An immobilizer type outputting part outputs information indicating that no immobilizer device is provided in the vehicle to an immobilizer-installed body ECU or a body ECU through an in-vehicle communication network in the case where an immobilizer type identification part of a remote start ECU judges that no immobilizer device is provided in the vehicle. The conference call participant registers to receive a notification signal for particular agenda items that are scheduled to be covered during the conference call. Actions that take place between the last checkpointing of a metadata segment and log file segment are discovered by scanning the non-volatile memory blocks, taking account of a record of the highest sector in each block that is known to have been recorded. Next, a view-frustum is adjusted in accordance with the change in position of the head of the user. A warning and diagnostic system incorporating visual indicators and communication lines provide descriptive system information for use by the vehicle’s operator and computer network, respectively.