| 摘要 |
PROBLEM TO BE SOLVED: To easily discriminate the data received from the input devices other than its own one such as a keyboard and a magnetic card reader even when these input devices are connected to a keyboard I/F, to evade increase of the data size that is needed for discrimination of data and also to easily know the data stored on a magnetic card. SOLUTION: A POS keyboard composite device 2 includes a magnetic card reader part 15 in addition to a keyboard device part 16. The data which are sent from the part 15 are sorted into the data which are inputted as they are and the data which are simply converted at a data converter part 18 with addition of each identification code. |
