| 摘要 |
<p>PROBLEM TO BE SOLVED: To automatically display touch-panel type numeric keys without requiring any setting work in a previous setup process when a keyboard is not connected in a POS terminal device. SOLUTION: It is determined whether the keyboard 1 is connected or not by a first determination processing program 21b in a main processing part 2. According to a second determination processing program 21c, it is determined whether a numeric key display flag is turned on or off. When non-connection is determined by the first determination processing program 21b and turning-on of the display flag is determined by the second determination processing program 21c, the numeric keys are displayed in a display part 3 according to a display processing program 21a.</p> |
