An input apparatus includes a display unit, an input unit, and a control unit. The display unit displays function items on a display window. The input unit selects and determines one function item with a pointer. The control unit controls a movement of the pointer by setting coordinates of the pointer based on position information transmitted from the input unit. Each function item includes a button region and a selection region. When the pointer moves to one of the button region and the selection region, the function item is selected. When the pointer is set to an equivalent stop state in the selection region, coordinates of the pointer are set as coordinates of a stop state position. When the pointer is set to the equivalent stop state in the button region, the coordinates of the pointer are set as coordinates of a predetermined position of the button region.