This article is rated Stub-class on Wikipedia's content assessment scale. It is of interest to the following WikiProjects:

Computing Mid‑importance This article is within the scope of WikiProject Computing, a collaborative effort to improve the coverage of computers, computing, and information technology on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.ComputingWikipedia:WikiProject ComputingTemplate:WikiProject ComputingComputing Mid This article has been rated as Mid-importance on the project's importance scale.

Tip: Anchors are case-sensitive in most browsers. This article contains broken links to one or more target anchors: [[IBM zEnterprise System#zEnterprise EC12|EC12]] The anchor (#zEnterprise EC12) has been deleted by other users before. [[IBM zEnterprise System#zEnterprise BC12|BC12]] The anchor (#zEnterprise BC12) has been deleted by other users before. The anchors may have been removed, renamed, or are no longer valid. Please fix them by following the link above, checking the page history of the target pages, or updating the links. Remove this template after the problem is fixed | Report an error

After a big edit of MVS I concluded that the whole set of articles about IBM mainframe operating systems from System/360 onwards needed to be re-structured to minimise overlap and to make clearer the evolutionary relationships between these operating systems (notably in memory management, which is historically a major distinguishing feature). There is already some support for this proposal. Please add comments at Talk: MVS. Philcha 23:56, 20 October 2007 (UTC)[reply]

I noticed in the timeline shown here that it jumps from VM/370 to VM/XA. Between these two was VM/SP, which went through enough versions to merit mention as well. -- Bob Nix —Preceding unsigned comment added by 129.176.151.6 (talk) 14:12, 27 December 2007 (UTC)[reply]

The image Image:VM mascot - teddy bear.gif is used in this article under a claim of fair use, but it does not have an adequate explanation for why it meets the requirements for such images when used here. In particular, for each page the image is used on, it must have an explanation linking to that page which explains why it needs to be used on that page. Please check

• That there is a non-free use rationale on the image's description page for the use in this article.
• That this article is linked to from the image description page.

This is an automated notice by FairuseBot. For assistance on the image use policy, see Wikipedia:Media copyright questions. --03:53, 4 November 2008 (UTC)[reply]

I'm not sure how significant this will be. But next week the Mantissa Corportation will be announcing their z/VOS product. The announcement about their upcoming announcement says that with z/VOS "you can deploy and manage native x86 Windows® and Linux images under z/VM."[1] It will be interesting to see what real information they can provide next week and integrate it into this article and possibly the other System z related article. --TreyGeek (talk) 04:02, 26 February 2009 (UTC)[reply]

This goes far beyond the scope of VM since terms are defined elsewhere, but historically, VM was open source. That was not in the free sense of the term but in the sense that complete source code was given with the distribution. Licensees were free to modify it, but IBM maintained all commercial rights. In the late 1980s (possibly early 1990s) IBM started distributing newer components of the OS without source code. But they kept supplying source code for existing components of the OS. I have no idea what is currently being distributed, but from a historical standpoint, this was a very relevant feature. Much innovation resulted from user developed enhancements, some of which IBM incorporated into the OS, and some of which was an early equivalent of shareware for those who licensed the OS.

This does not meet the definitions of either closed source or open source that are given elsewhere in Wikipedia, but something should be done clarify this. VM Systems Programmers referred to it as open source, despite the current use. 50.0.106.145 (talk) 00:34, 7 December 2011 (UTC)[reply]

Do you have reliable sources to reference? --TreyGeek (talk) 00:44, 7 December 2011 (UTC)[reply]

An image used in this article, File:ZVMCMS.png, has been nominated for speedy deletion for the following reason: Wikipedia files with no non-free use rationale as of 3 June 2012 What should I do? Don't panic; you should have time to contest the deletion (although please review deletion guidelines before doing so). The best way to contest this form of deletion is by posting on the image talk page. If the image is non-free then you may need to provide a fair use rationale If the image isn't freely licensed and there is no fair use rationale, then it cannot be uploaded or used. If the image has already been deleted you may want to try Deletion Review To take part in any discussion, or to review a more detailed deletion rationale please visit the relevant image page (File:ZVMCMS.png) This is Bot placed notification, another user has nominated/tagged the image --CommonsNotificationBot (talk) 11:31, 3 June 2012 (UTC)[reply]