In 1977, Berkeley Software Distribution (BSD) waxaa soo saaray Computer Systems Research Group (CSRG) oo ka tirsan UC Berkeley, iyadoo ku saleysan daabacaadda 6aad ee Unix ee AT&T. Tan iyo markii BSD ay ku jirtay koodhka Unix ee AT&T leedahay, AT&T waxay dacwad ka gudbisay (USL v. BSDi) horraantii 1990-yadii Jaamacadda California. Tani waxay si weyn u xaddiday horumarka iyo qaadashada BSD.
ku dhowaad software ku filan oo la heli karo si loo abuuro nidaam hawlgal oo dhamaystiran