| 摘要 |
A coordinate input device detects coordinates of a position by indicating a screen of a display device with fingers of one hand, and transfers information of the detected coordinates to a computer through a controller. The computer receives an operation that complies with the detected coordinates, and executes the corresponding processing. For example, when it is detected that two points on the screen have been simultaneously indicated, an icon registered in advance is displayed close to the indicated position.
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