File:Unix history-simple.svg

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Summary

Description

English: A diagram showing the key Unix and Unix-like operating systems

Deutsch: Ein Diagramm, das die wichtigsten Unix-basierten Betriebssysteme darstellt

Date

8 July 2008

Source

Levenez Unix History Diagram, Information on the history of IBM's AIX on ibm.com

Author

Eraserhead1, Infinity0, Sav_vas

Permission
(Reusing this file)

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Licensing notes:

Linux was inspired by MINIX and Unix, but Linux and GNU code was written from scratch.
BSD was originally based on code copyrighted by AT&T, but over the period 1989–1994, was rewritten to purge all AT&T code.
The Single UNIX Specification controls access to the Unix trademark, owned by The Open Group.
Novell purchased the Unix copyright from AT&T, which it still owns as of August 2010 (see SCO v. Novell).
The Santa Cruz Operation purchased the right to develop and sublicense SCO OpenServer and UnixWare from Novell, which it sold to what is now (2010) the SCO Group (see SCO v. Novell).
IBM AIX is a licensed Unix derivative, as is HP-UX

File history

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	Date/Time	Dimensions	User	Comment
current	20:17, 26 October 2020	2,012 × 1,462 (95 KB)	Emil Engler	OpenBSD 6.8
	16:37, 23 May 2020	2,012 × 1,462 (95 KB)	Oknazevad	Reverted to version as of 17:04, 21 May 2020 (UTC) again, there's no support for z/OS as a native Unix system, on this talk page of any other that I can find. It's a compatibility layer, not a native Unix system. We don't include Windows systems with a compatibility layer.
	14:27, 23 May 2020	2,005 × 1,371 (118 KB)	Altanner1991	MVS/ESA SP 4.3 OpenEdition, OS/390
	20:25, 22 May 2020	2,005 × 1,371 (116 KB)	Altanner1991	alignment-spacing/fixing the wrong file
	20:15, 22 May 2020	2,012 × 1,462 (115 KB)	Altanner1991	improving symmetricity
	19:59, 22 May 2020	2,005 × 1,371 (116 KB)	Altanner1991	(thumbnail issue)
	19:58, 22 May 2020	2,000 × 1,371 (116 KB)	Altanner1991	Reverted to version as of 19:50, 22 May 2020 (UTC) used the wrong file in the upload
	19:56, 22 May 2020	2,005 × 1,371 (116 KB)	Altanner1991	slight fix on spacing (and finishing file changes which were cut) MINIX is, like Linux, also an "independent reimplementation" clone. Please refer to the relevant talk page section if wanting to debate the issue. No other major operating system is missing now.
	19:50, 22 May 2020	2,000 × 1,371 (116 KB)	Altanner1991	Including z/OS has for some time now been the opinion on the relevant Unix talk page section. Minix and Linux are less UNIX than z/OS. Indeed "Linux is a Unix Clone and shares no actual code."; UNIX codes are proprietary. "The Linux kernel did not start with any other UNIX code as a base. However, during the SCO vs IBM lawsuit, it was shown that Linux contained some code from a UNIX OS based on BSD known as Dynix." (There is a StackExchange discussion which lists all of these points.) MINIX i...
	17:04, 21 May 2020	2,012 × 1,462 (95 KB)	Emil Engler	OpenBSD 6.7 was released yesterday