??? ???? ??? ?????? ???? ??? ???? ??????? ? ??? ?? ???????????? ???? ????? ???. ???? ??? ?? ????? ?? ???? ?????? ???????? ???????? ????? ???? ????? ???.The idea of dirty bits has existed for many years. The main known usage of dirty bits was from the IBM Method/360 operating technique, which was launched in 1964. The Procedure/360 running procedure