| 摘要 |
<p>PROBLEM TO BE SOLVED: To make it possible to suppress the movement of the line of sight of an operator to the minimum and to attain improvement of the job efficiency of the operator by displaying an information display frame at a position between a group of buttons in a displayer and a keyboard. SOLUTION: A CPU takes in a detection output from a keyboard position sensor 18 by way of a sensor control part 17 for every prescribed time and stores a detection code for indicating a state of the keyboard position sensor 18 at that time in a variable A. An instruction order for displaying a status display frame 26 is displayed by the stored detection code, for example, at an almost central position between a group of buttons 25 and a keyboard 16. An application program part displays the status frame 26 for indicating the number of goods or subtotal/total to a displayer 20 according to the instruction order. Thus, it is possible to suppress movement of line of sight of an operator to the minimum even when selection input of the goods is performed by displaying the position of the status display frame 26 between the group of buttons 25 and the keyboard 16.</p> |
