1·Input devices include keyboards and pointing devices such as mouse joystick track ball or light pen.
输入设备包括键盘和点击设备如鼠标,操纵杆,跟踪球或光笔。
2·Input devices include keyboards and pointing devices such as mouse, joystick, track ball, or light pen.
输入设备包括键盘和点击设备如鼠标,操纵杆,跟踪球或光笔。