| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce selection mistakes even for a beginner who is inexperienced in a menue selection operation. SOLUTION: A high order menu having plural selection items and the low order menu corresponding to each selection item of the high order menu are stored as data. When the high order menu and the low order menu corresponding to the one selection item of the high order menu selected by operating a key input part 3 are displayed based on each data, the graphic image corresponding to the low order menu and a guidance message are simultaneously displayed.</p> |
