ELECTRONIC MONEY SYSTEM AND ELECTRONIC MONEY TERMINAL DEVICE

摘要

An electronic money system and an electronic money terminal device, capable of arbitrarily determining a partial payment amount at each user's payment when an installment plan is used. Instead of drawing amount data of spent money amount from an information card (50), the amount data of a spent money amount is accumulated as installment plan history data, part or all of the accumulated installment plan balance is received as a partial payment amount, the received partial payment amount is deducted from an installment plan balance to determine a new balance, thereby the user can pay an arbitrary amount out of an installment plan balance as a partial payment amount.