Difference between revisions of "UNIX"

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(should the csrg stuff even be here?!)
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* [[Unix SYSVr4]]
 
* [[Unix SYSVr4]]
  
 +
== CSRG releases ==
 
Meanwhile the [[CSRG]] kept on releasing newer [[BSD]] UNIX's derived from 32v.
 
Meanwhile the [[CSRG]] kept on releasing newer [[BSD]] UNIX's derived from 32v.
 
* [[2.11 BSD]] - A still-maintained version for PDP-11s
 
* [[2.11 BSD]] - A still-maintained version for PDP-11s
* [[3.0 BSD]] - Derived from 32v, includign a real virtual memory system
+
* [[3 BSD|3.0 BSD]] - Derived from 32v, includign a real virtual memory system
 
* [[4.0 BSD]] - A vastly improved 3.0
 
* [[4.0 BSD]] - A vastly improved 3.0
 
* [[4.1 BSD]] - These were mostly betas testing new filesystems & the TCP/IP protocol.
 
* [[4.1 BSD]] - These were mostly betas testing new filesystems & the TCP/IP protocol.

Revision as of 17:49, 22 September 2009


Unix
Type: Time-sharing
Creator: Ken Thompson, Dennis Ritchie and Douglas McIlroy at Bell Labs
Multitasking: Multitasking with paging/swap
Architecture: Originally PDP-7, then PDP-11 now cross-platform.
Date Released: 1969


Unix (officially trademarked as UNIX®) is a computer operating system originally developed in the 1960s and 1970s by a group of AT&T employees at Bell Labs including Ken Thompson, Dennis Ritchie and Douglas McIlroy. Today's Unix systems are split into various branches, developed over time by AT&T as well as various commercial vendors and non-profit organizations.

Versions of relevance for hobbyists include:

Unix then went commercial and was sold. Below is an early ad for AT&T UNIX.

Unix ad

CSRG releases

Meanwhile the CSRG kept on releasing newer BSD UNIX's derived from 32v.

  • 2.11 BSD - A still-maintained version for PDP-11s
  • 3.0 BSD - Derived from 32v, includign a real virtual memory system
  • 4.0 BSD - A vastly improved 3.0
  • 4.1 BSD - These were mostly betas testing new filesystems & the TCP/IP protocol.
  • 4.2 BSD - The first shipping version of BSD with TCP/IP, FFS & termcap for the VAX.
  • 4.3 BSD - A version of pre-POSIX BSD, for the VAX.
  • 4.4 BSD - Did this version ever ship?
  • Net/1 - The TCP/IP source, and other programs free of the AT&T copyrite
  • Net/2 - Almost an entire release of all the source. This was the contention in the AT&T vs CSRG lawsuit.
  • 4.4 BSD Lite - This was the result of the aformentioned lawsuit. This was 'lite' in that it removed the offending 6 files.

386 BSD This is the first Net/2 derived OS that then spawned the Net/FreeBSD os's.

FreeBSD focuses on providing a system geared towards a single user.

NetBSD will run on a variety of 32-bit older systems from the VAX to the Amiga.

OpenBSD derived from the NetBSD project will run on all kinds of systems.