???????, ????, ???????????, ?????, ????? — ???? ??????? ????? ????????? ????????? ??????. ????????? ????????? — ?????????? ? ????? ???????, ???? ?????? ????? ???????? ? ??? ?????????. ???????? ?????????? ?????????? ???????? ????????. the next Berkeley Software Distribution (2BSD), launched in may perhaps 1979,[12] provided up-to-date variation