PURPOSE: To input not only an Arabic numeral but also a Chinese numeral and a different type Chinese numeral with one key hitting by selecting the figure in a character kind except for the Arabic numeral with a character kind key and reading the figure in the character kind to be selected from a code storage part to be stored beforehand.

CONSTITUTION: When a Chinese numeral key 2 and a different type key 3 to be the character kind keys are both off, at the time of operating a ten key 1, for a code selecting part 4, an Arabic numeral code storage part 5 is accessed. In the same way, when the Chinese numeral key 2 is on and the different type key 3 is off, a Chinese code storage part 6 is accessed, and when the Chinese numeral key 2 and different type key 3 are both on, a Chinese numeral different type code storage part 7 is accessed. The codes read from the code storage parts 5-7 are sent at last. In such a way, since the figure in the character kind except for the Arabic figure is selected by the character kind key and the figure in the character kind to be selected is read from the code storage parts 6 and 7 to be stored beforehand, not only the Arabic numeral but also the Chinese numeral and difference type Chinese numeral, etc., can be inputted with one key hitting.