| 摘要 |
PURPOSE:To facilitate to discrimination of the display of a displaying means by providing a displaying means to display a clear function setting or an all- clear function setting with the change of a display condition. CONSTITUTION:When the clear key 12X of an IC card 10 is operated, an input value on display at a displaying part 13 is canceled and simultaneously a 'zero' is displayed on the displaying part 13. When an all-clear function is set by the operation of an all-clear key 12y, all of input cancellations and operation results are executed regardless of before or after an operator input and simultaneously the displaying part 13 is in a non-display condition. Thus, either case of a clear function setting or all-clear function setting can be confirmed through the display condition of the displaying part and also it can be easily discriminated which function is set.
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