Web site: (not active)
Origin: USA
Category: Server
Desktop environment: CLI
Architecture: VAX, Motorola 68000, Power 6/32, HP 9000
Based on: UNIX
Wikipedia: 4BSD
Media: Install
The last version | Released: 4.4 | 1993
4BSD – versions of the BSD system developed under a contract that the University of California, Berkeley, received from DARPA (Defense Advanced Research Projects Agency; between 1958–1972 and 1993–1996 under the name of Advanced Research Projects Agency – ARPA).
4BSD was the operating system of choice for VAXs from the beginning until the release of System III (1979–1982).
4.0BSD – the first system in the 4.x series, published in 1980.
4.1BSD – improved mail handling, improved kernel, added Pascal and Lisp support, and support for the new VAX 11/750s. Published in 1981.
4.2BSD – the first operating system to include built-in TCP/IP support. Published in 1983.
4.3BSD – the most complete version of the Unix system developed in the CSRG laboratories of the University of California, Berkeley. Distributed on tapes with the full source code. The first version was released in June 1986, the individual intermediate versions were codenamed (chronologically): Tahoe (1988), Net/1 (1989), Reno (1990), Net/2 (the most popular, last version: 1991). In the last version it became the basis for such IT projects as 386BSD, BSD/386, NetBSD, FreeBSD.
4.4BSD – the last version of the Unix variant created in 1993 at the University of California, Berkeley, in the CSRG laboratories, like the previous ones, available on tapes with full source code.
The publicly available BSD code became the cause of the lawsuit that AT&T filed in 1992 against BSDI, which based its system on the code from the University of Berkeley, which was also sued. This lawsuit hindered the development of BSD Unixes for many years.
4.4BSD and its version 4.4BSD-Lite (1994), reduced by AT&T code, became the basis for many free and commercial versions of the Unix system. Its derivatives include (chronologically) newer versions of BSD/OS systems (previously distributed as BSD/386 was based on 4.3BSD Net/2), NetBSD (since full version 1.0), FreeBSD (since version 2.0). The 4.4BSD Lite2 update supports FreeBSD 3.0, NetBSD 1.3, OpenBSD 2.3, BSD/OS 3.0, and Apple’s Rhapsody code.
