| http://www.w3.org/ns/prov#value | - rent travel distance and the current bearing of the vehicle, a video RAM 35 adapted to preliminarily store information such as a current location indicating mark, a current bearing indicating mark and a current path of travel indicating mark, and the map or geographic image information, and a parallel input and output and interruption control circuit 36 adapted to selectively connect the CPU 31 an
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