| 摘要 |
PROBLEM TO BE SOLVED: To provide a keyboard with which a user is able to operate with the same position image without feeling any physical disorder about key operation sensation stored on the user side even if the keyboard is changed and to eliminate the bewilderment of changing the key operation sensation each time a keyboard is changed. SOLUTION: An intermediate-layer sheet which converts a key input so that a specific indication which is executed by pressing a specific key top of a keyboard used so far, can be executed by pressing a key top at the same position with the specific key top of the keyboard used so far even when the keyboard is changed, is provided between an upper-layer sheet and a lower-layer sheet present in the keyboard used so far.
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