提供位置座標的一種輸入設備。例如滑鼠器、圖形輸入板。
An input device that provides coordinates of a position.Example: A mouse, a tablet.
用滑鼠器(或其它選圖設備)檢取顯示在屏幕上需要的信息,以供計算機做下一步的處理。
Identification of information displayed on a screen for subsequent computer processing, by pointing to it with a mouse.