A computer network for use in the game of golf includes a central computer communicatively connected to a plurality of local master computers. Each local master computer transfers and receives golf related information to and from a plurality of mobile modules carried along by the golfer on the golf course. Transfer of information between the mobile modules and the local master computer is by ROM and RAM cartridges. The mobile modules present a display of the golf course played on, and allow for input of scoring data by the players.
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