PROBLEM TO BE SOLVED: To provide a POS system for a restaurant, which rationalizes sales management of the restaurant to allow the improvement of the effect of attracting people by updating data in a home page on a terminal of the POS system.;SOLUTION: A POS system 10 where a POS terminal 11 installed at a store is connected to a POS server 12 is constituted. A web device 20 including a web server 22 for managing a home page 21 of the store and affiliates of the store is constituted. A data link device 30 connected to the web server 22 via a public line connected to the POS terminal 11 is constituted. A shared file 31 writable from the POS terminal 11 is provided in the data link device 30. The data link device 30 uploads data written in the shared file 31 to the web device 20.;COPYRIGHT: (C)2013,JPO&INPIT
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