| 摘要 |
PROBLEM TO BE SOLVED: To provide a portable information processor capable of naturally operating a track button and a click button with one hand. SOLUTION: A rotary base 3 is attached to the outer periphery of the ball part 2 of a track ball, a rotary type switch 1 is provided on the rotary base 3, the rotary type switch 1 is rotated in the range of a right dragging position 9 - a right click position 8 - an original position 7 - a left click position 10 - a left dragging position 11 and the operations of clicking and dragging a pointing device are performed by the position of the rotary type switch 1. |
