1) Short for Virtual Memory System, a multi-user, multitasking, virtual memory operating system that runs on DEC's VAX and Alpha lines of minicomputers and workstations. VMS was introduced in 1979 along with the first VAX minicomputer. Like the VAX itself, VMS has undergone many changes over the years. DEC now refers to it as OpenVMS.

2) Short for Vocabulary Management Solution. See also Vocabulary Management Solution.

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VMS information and resources 
Contains numerous pointers to VMS information on the web.

Digital's OpenVMS systems page
Offers a collection of news and information about OpenVMS systems and related products. Also includes OpenVMS online documentation, success stories, questions and answers, and event information.

OpenVMS Freeware
Contains several pointers to freely available software for OpenVMS VAX and OpenVMS Alpha.

Yahoo!'s VMS page
Yahoo!'s directory of VMS.

History of the VAX and VMS.
Here's an overview of the history of VAX and its operating system, VMS. Includes pictures.