BSD Superseded
BSD
KindOperating system
Appeared1977
StatusSuperseded
CreatorUC Berkeley CSRG
FamilyBSD
PlatformVAX
Also known asBerkeley UNIX, 4.3BSD
Sourcewww.freebsd.org ↗
Berkeley's Unix distribution — TCP/IP sockets, vi, csh, and the license model that defined open source; its direct descendants still ship.
1960198020002020
Descended from Research Unix
Predecessors Research Unix
Berkeley Unix — Bill Joy's 1977 tape of additions to AT&T's V6 — grew into 4.2BSD (1983), the first Unix with TCP/IP built in and the sockets API everything still uses. The vi editor, the csh shell, termcap, and job control are all BSD's exports.\n\nThe 1991 USL lawsuit over the AT&T-licensed code triggered the BSD lawsuit settlement and the free-software lineage — FreeBSD, NetBSD, OpenBSD — that outlived the commercial BSDi products.