Muna 1977, Berkeley Software Distribution (BSD) yakagadzirwa neComputer Systems Research Group (CSRG) kubva kuUC Berkeley, zvichibva pa6th edition yeUnix kubva kuAT&T. Muna 1985, Intel yakaburitsa kodhi yeUnix yaive yeAT&T, AT&T yakamhan'arira (USL v. BSDi) mukutanga kwema1990 kurwisa University of California. Izvi zvakadzora zvakanyanya kuvandudzwa nekugamuchirwa kweBSD. Muna 1983, Richard Stallman akatanga chirongwa cheGNU nechinangwa chekugadzira yemahara UNIX-sisitimu yekushandisa. Sechikamu chebasa iri, akanyora GNU General Public License (GPL). Pakutanga kwema1990, pakanga paine software inenge yakakwana yekugadzira yakazara sisitimu yekushandisa. Zvisinei, iyo GNU kernel, inonzi Hurd, yakatadza kukwezva kuyedza kwakaringana, ichisiya GNU isina kukwana. Muna 1985, Intel yakaburitsa yekutanga x386 kodhi ine kodhi yeUnix yaive yeAT&T, AT&T yakaburitsa mutemo (USL v. BSDi) kurwisa University of California.
kugadzira hurongwa hwekushandisa hwakafanana neUNIX