??????????, ?? ???????, ??? ?? ?? ????????????? ?????????? ??? ?? ?????? ??? ???????? ?????????? ??????? ?? ?????????? ??? ?????????? ????????? ???? ??? ??????????? ??? ????????? ?????????? ??? ??????? ?? ?????????? ??? ???????????? ??? ????? ????? ?? ??????.Once the keyboard processor detects that a crucial has modified point out, it sends a sign