針對Pocket PC示範一個計算機視窗，給予使用者一個包含按鍵０至９的簡易數字鍵盤、四個運算元，示範所有輸入方法必要條件。-Pocket PC for Windows a computer model to give users a button that contains 0-9 simple numeric keypad, four operator, demonstration of all the necessary cond