?? ???????????? ????? ?????????? ???????????? ??????????????????? ? ??????? ??? ?? ????? ???? ????????, ??? ???????? ????? ??? ? ???????? ???.??????? ????? ??? ?? ???????? ??? ???? ?????? ?? ????? ?? ???????? ?? ???????????? ?????? ??? ????????? ? ??? ????????????.Additional not too long ago invented, a modem modulates an analog "carrier" sign (lik