| 摘要 |
PROBLEM TO BE SOLVED: To execute simple download and collection of various information from a host computer to an electronic price indicating balance. SOLUTION: One master machine M1 from among plural electronic price indicating balance is allowed to have WWW server function, and thereby download and collection of various information to satellite machines S1-S3 can be executed only by executing communication with the master machine M1 by the host computer H.
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