Disclosed is a data processing system and method. The method includes the steps of: Providing a transmitter arranged to transmit in the microwave frequency range; providing a receiving means on the vehicle, receiving the signal, and calculating the azimuth of the transmitter with respect to the vehicle. The surgical instrument is included in a mechanical assembly having a first set of joints. The lower shaft and upper shaft form a jaw mechanism that can take multiple bites of bone, which can be deposited in a storage cavity formed in the upper shaft.