Tirohia te wāhanga i raro nei, kātahi ka whakautu i te pātai i muri mai i te reo kotahi me te wāhanga:  Passage: I te tau 1977, i whakawhanakehia te Berkeley Software Distribution (BSD) e te Rōpū Rangahau Rorohiko Rorohiko (CSRG) mai i UC Berkeley, i runga i te putanga 6 o Unix mai i AT&T. I te mea kei roto i te BSD te waehere Unix kei a AT&T, i tukuna e AT&T he whakawa (USL v. BSDi) i nga tau moata o te 1990 ki te Whare Wananga o California. I tino whakaitihia e tenei te whanaketanga me te tango i te BSD. I te 1983, i tiimata e Richard Stallman te kaupapa GNU me te whaainga ki te hanga i tetahi punaha whakahaere koreutu UNIX-rite. Hei wāhanga o tēnei mahi, i tuhia e ia te Raihana Tūmatanui GNU (GPL). I te tīmatanga o te tekau tau 1990, tata tonu te pūmanawa e wātea ana hei waihanga i tētahi pūnaha whakahaere katoa. Heoi, ko te GNU kernel, i huaina ko Hurd, kaore i kaha ki te kukume i te kaha whanaketanga, ka waiho i te GNU kaore i oti. I te 1985, i tukuna e Intel te 80386, te miihini x86 tuatahi me te huinga tohutohu 32-bit me te waahanga whakahaere mahara me te whaarangi. I te 1986, i whakaputahia e Maurice J. Bach, o AT&T Bell Labs, Te Hoahoa o te Pūnaha Whakahaere UNIX. Ko tenei whakaahuatanga whakamutunga i hipoki i te punaha punaha V Whakarewatanga 2, me etahi ahuatanga hou mai i te Whakarewatanga 3 me te BSD.  Pātai: E hia ngā pūmanawa i reira i te tīmatanga o ngā tau 1990?
tata noa pūmanawa e wātea ana ki te waihanga i tētahi pūnaha whakahaere tonu