Terminal device and transaction system using electronic money

摘要

The terminal device (10) used in combination with a host server (20) has a function receiving a predetermined amount of electronic money from the host server when running start is instructed, a function of receiving the electronic money of the amount of payment from an IC card of a customer when a goods is bought, a function of transferring the electronic money to the host server so that when the internal balance of the electronic money exceeds an upper limit value of the balance, the balance of electronic money reaches a lower limit value of the balance, a function of transferring all the internal amount of electronic money to the host server, and other functions.