| 摘要 |
PROBLEM TO BE SOLVED: To provide a method capable of transmitting the content of an order to a dealer without being leaked or altered dishonestly in an Internet trading, purchasing products without informing the dealer of a credit card number, and performing payment by inputting a part of the long credit card number without inputting all digits of the credit card number. SOLUTION: Two modem circuits are provided in a personal computer, and a first channel among two channels is connected to a router to browse a homepage. For the content of an important trading, a second channel is used. The channel is connected directly to a mating part through a public line for transmission. |
