| 摘要 |
PURPOSE:To input numbers of articles correctly with limited article keys, by providing article name display devices corresponding to respective article keys, and displaying selected article names on the article name display devices. CONSTITUTION:Article name display devices SD1-SD5 provided to the arrangement part of article keys SK of a keyboard 3 are arranged corresponding to lines of article keys SK, and have four sectioned display areas which correspond to the article keys SK. Therefore, article names are displayed corresponding to 20 article keys. Then, five classification keys BK for switching functions of the article keys SK are provided, and consequently 100 departments are selected in total. |
