VMS

	VMS
	; Logging into a 4.7 VMS system
Creator:	Digital Equipment Corporation
This Version:	7.3 (for VAX); 8.4 (for Alpha and Itanium); 9.2 (for x86)

VMS is a high-end, secure, multi-tasking operating system written by Digital Equipment Corporation and currently actively maintained by VMS Software, Inc..

It runs on the VAX, Alpha, Itanium, and x86 platforms. Beginning with VMS V5.5, the OS was renamed to OpenVMS.

VMS has been ported to x86 by VMS Software, Inc..

Supported machines

Version	Machines
VAX/VMS V1.0	VAX-11/780
VAX/VMS V2.0	VAX-11/750
VAX/VMS V3.0	VAX-11/730
VAX/VMS, MicroVMS V4.0	MicroVAX
VAX/VMS V5.0-2A	VAX 6000
OpenVMS AXP V1.0	Alpha
OpenVMS V8.0	Itanium

Emulation

VMS and OpenVMS can be run on SIMH's VAX simulators. OpenVMS can also run on ES 40 Emulator which will run the Alpha version. Although VMS is still a commercial operating system, just like many varieties of commercial UNIX and Windows, VMS Software, Inc. (which is the current owner of most of DEC's assets) has a hobbyist program which allows licenses to be obtained for non-commercial uses for the Alpha, Itanium, and x86 platforms.

There are currently no known hobbyist licenses for OpenVMS/VAX versions V5.x and higher.

See the following:

* http://www.wherry.com/gadgets/retrocomputing/vax-simh.html

External links

OpenVMS release history (via Wayback machine).
VSI OpenVMS Support Roadmap
VAX/VMS Versions - "which VMS versions are supported on which CPUs"

This article is not as complete coverage of the topic as it could be. You can help by expanding it.

VMS

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Supported machines

Emulation

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VMS
Logging into a 4.7 VMS system
Creator:	Digital Equipment Corporation
This Version:	7.3 (for VAX) 8.4 (for Alpha and Itanium) 9.2 (for x86)