通常，输入来自键盘而且出去到荧屏而错误被送到一个缓冲区。
Normally, input comes from the keyboard and goes out to the screen, while errors are sent to a buffer.
如果用户使用操纵杆，输入将来自操纵杆，否则输入将来自键盘。
If the user is using the joystick, input will come from the joystick, otherwise input will come from the keyboard.
所述键盘控制器接收输入方 式切换单元的信号，并根据该信号择一处理来自键盘按键和触摸输入处理单元 的输入信息。
Received signal from unit for switching input modes, the keyboard controller selects and processes information input from the keyboard push button keys or from the touch units.
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