A vehicle controller comprises a first buffer for storing at least one data block, a second buffer for storing at least one data block, and a rewritable non-volatile memory for storing information for controlling a vehicle. The gate terminals of the first and second N channel depletion transistors are connected to the output of a control circuit and the first terminal of a discharge resistance. The drive system includes a variable frequency drive device to generate electrical signals that effect rotation of the rotatable shaft of the motor in order to rotate the fan. In some cases, the proximity determination may be a proximity of an object to the proximity sensor, and altering the effect may include changing the proximity of the object from a proximity greater than a first threshold to a proximity less than the first threshold. Emulated data network and voice network functionality may be provided to those users without requiring their corresponding entity to have a physical home location for data network and voice network elements, or any particular dedicated arrangement of such physical network infrastructure elements.