| 摘要 |
<p>PROBLEM TO BE SOLVED: To master the correct operation of a keyboard speedily by attaching a keyboard cover to a keyboard. SOLUTION: The keyboard cover 1 with the areas of the positions of fingers divided by projections 2 or a keyboard cover with the areas displayed in a color division part 3 is mounted on the keyboard to learn a way to use fingers rightly in keyboard operation naturally and easily. Training of keyboard operation can be enjoyed visually by varying the height of the projections or varying the color of the keyboard cover corresponding to the learning degree of keyboard operation.</p> |
