View source for 4BSD

{{Infobox OS 
| image = 40bsd.png
| caption = Logging into a 4BSD system
| name = 4BSD
| creator = CSRG
| current version = 4.0 (1980)
| year introduced = 1980
| type = Multitasking, multiuser
| architecture = [[VAX]], theoretically portable
}}

'''4BSD''' (sometimes now called '''4.0BSD''', but this name was not used at the time) from [[Computer Systems Research Group|CSRG]] at Berkeley improves upon the [[3BSD]] release with curses, better job control, csh, and "reliable signals".

== How do I get this to run?! ==

You can follow the guide [[Installing 4.0 BSD on SIMH]], which was derived from the excellent work of Naoki Hamada [http://zazie.tom-yam.or.jp/starunix/ here] for more information.

There is also the historical document [[Setting up (BSD 4.0) the Fourth Berkeley Software Tape|Setting up the Fourth Berkeley Software Tape]].

Currently if you enable the [[DZ11]] ttys you'll get a bunch of 'ZERO VECTOR UBA RESET: dz up 'errors...  So this isn't very useful if you were hoping for some kind of multi-user system.  The only 'good' thing is the 32v idle in simh-3.8-0 works well on this version.

== What Runs? == 

Not very much.... 4 BSD does not provide any modern networking, and the C [[compiler]] is far from ANSI.
Also keep in mind that 4 BSD does *NOT* include any [[TCP/IP]] networking...  It's worth noting that the [[zork]] binary made it's appearance in this version of BSD Unix..

== games ==
<pre>
aardvark    banner      ching       lib         snake
adventure   bcd         cribbage    mille       snscore
advfiles    bogdict     fish        monop       trek
arithmetic  boggle      fortune     number      wump
backgammon  chess       hangman     quiz        zork
</pre>

==External links==

* [https://minnie.tuhs.org/cgi-bin/utree.pl?file=4BSD 4BSD] - distro at [[The Unix Heritage Society|TUHS]]
* [https://www.jslite.net/notes/joy2.pdf Proposal for enhancement of UNIX on the VAX] - Berkeley's proposal to [[DARPA]] that led to 4.0 and its successors

{{Nav Unix}}

[[Category: CSRG BSD]]