| 摘要 |
PURPOSE:To allow the operator to confirm easily the input of an computing key and to improve the operability by displaying numeral display information being displayed on a display means in response to the input of the operation key with flashing. CONSTITUTION:An entry numeral key 1A and an operator inputting computing key 1B in a key input means 1 entry a key data, which is read by a controller 2 to decide whether the key is a numeric key or an computing key. When the key data is a numeric key, the full right side display is given via a display means 6 and when the key data is an computing key, the operation key is set in a work area of an RAM 5 so as to flash (blink) the display numeral during display on the display means 6. Then when a key input of total key [=] exists, the operator stored in the work area of the RAM 5 and display information during display are subject to calculation and the result is displayed on the display means 6. Thus, the input of computing key is confirmed easily by flashed numeral information under display and then the operability is improved.
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