English, Japanese.[7] Historical support for Chinese (both Traditional and Simplified characters), Korean, Thai.[8]
Update method
Concurrent upgrades, rolling upgrades
Package manager
PCSI and VMSINSTAL
Platforms
VAX, Alpha, Itanium, x86-64
Kernel type
Monolithic kernel with loadable modules
Influenced
VAXELN, MICA, Windows NT
Influenced by
RSX-11M
Default user interface
DCL CLI and DECwindows GUI
License
Proprietary
Official website
vmssoftware.com
OpenVMS, often referred to as just VMS,[9] is a multi-user, multiprocessing and virtual memory-based operating system. It is designed to support time-sharing, batch processing, transaction processing and workstation applications.[10] Customers using OpenVMS include banks and financial services, hospitals and healthcare, telecommunications operators, network information services, and industrial manufacturers.[11][12] During the 1990s and 2000s, there were approximately half a million VMS systems in operation worldwide.[13][14][15]
It was first announced by Digital Equipment Corporation (DEC) as VAX/VMS (Virtual Address eXtension/Virtual Memory System[16]) alongside the VAX-11/780 minicomputer in 1977.[17][18][19] OpenVMS has subsequently been ported to run on DEC Alpha systems, the Itanium-based HPE Integrity Servers,[20] and select x86-64 hardware and hypervisors.[21] Since 2014, OpenVMS is developed and supported by VMS Software Inc. (VSI).[22][23] OpenVMS offers high availability through clustering—the ability to distribute the system over multiple physical machines.[24] This allows clustered applications and data to remain continuously available while operating system software and hardware maintenance and upgrades are performed,[25] or if part of the cluster is destroyed.[26] VMS cluster uptimes of 17 years have been reported.[27]
^Patrick Thibodeau (July 31, 2014). "HP gives OpenVMS new life". Computerworld. Retrieved October 21, 2021.
^Camiel Vanderhoeven (May 30, 2021). "How much of VMS is still in MACRO-32?". Newsgroup: comp.os.vms. Retrieved October 21, 2021.
^"2.7 In what language is OpenVMS written?". The OpenVMS Frequently Asked Questions (FAQ). Hewlett Packard Enterprise. Archived from the original on August 10, 2018.
^Cite error: The named reference wizard-vms-source was invoked but never defined (see the help page).
^"Webinar 16: x86 Update". VSI. October 15, 2021. Archived from the original on December 11, 2021. Retrieved November 2, 2021.
^"OpenVMS V9.2-2 public availability". VSI. January 25, 2024. Retrieved January 25, 2024.
^"Japanese OpenVMS OS (JVMS)". VSI. Retrieved February 5, 2021.
^Michael M. T. Yau (1993). "Supporting the Chinese, Japanese, and Korean Languages in the OpenVMS Operating System" (PDF). Digital Technical Journal. 5 (3): 63–79. Retrieved October 21, 2021.
^"OpenVMS at 20 Nothing stops it" (PDF). Digital Equipment Corporation. October 1997. Retrieved February 12, 2021.
^"Software Product Description and QuickSpecs - VSI OpenVMS Version 8.4-2L1 for Integrity servers" (PDF). VMS Software Inc. July 2019. Retrieved January 2, 2021.
^"VSI Business & New Products Update – April 9, 2019" (PDF). VSI. April 2019. Retrieved May 4, 2021.
^Charles Babcock (November 1, 2007). "VMS Operating System Is 30 Years Old; Customers Believe It Can Last Forever". InformationWeek. Retrieved February 19, 2021.
^Drew Robb (November 1, 2004). "OpenVMS survives and thrives". computerworld.com. Retrieved December 31, 2020.
^Tao Ai Lei (May 30, 1998). "Digital tries to salvage OpenVMS". computerworld.co.nz. Retrieved December 31, 2020.
^Jesse Lipcon (October 1997). "OpenVMS: 20 Years of Renewal". Digital Equipment Corporation. Archived from the original on February 17, 2006. Retrieved February 12, 2021.
^"VAX-11/780 Hardware Handbook" (PDF). Digital Equipment Corporation. 1979. Retrieved October 17, 2022.
OpenVMS, often referred to as just VMS, is a multi-user, multiprocessing and virtual memory-based operating system. It is designed to support time-sharing...
for OpenVMS is the latest name for a dialect of the BASIC programming language created by Digital Equipment Corporation (DEC) and now owned by VMS Software...
ownership of his private fleet of aircraft OpenVMS or VAX/VMS (Virtual Memory System), a computer operating system VMS (Visual Memory System) or VMU (Visual...
convention, a nonzero status code indicates abnormal termination." In OpenVMS, success is indicated by odd values and failure by even values. The value...
has third party versions available for AIX, BSD, HP-UX, Linux, macOS, OpenVMS, OSF (Tru64), Solaris and Haiku. As of version 0.97.5, ClamAV builds and...
Novell NetWare, the superuser was called "supervisor", later "admin". In OpenVMS, "SYSTEM" is the superuser account for the OS. On many older OSes on computers...
machine code. The native VAX operating system is Digital's VAX/VMS (renamed to OpenVMS in 1991 or early 1992 when it was ported to Alpha, modified to...
boottime: { sec = 1271934886, usec = 667779 } Thu Apr 22 12:14:46 2010 On OpenVMS systems, the show system command can be used at the DCL command prompt...
Itanium porting effort began, ownership of OpenVMS transferred from Compaq to HP in 2001, and then to VMS Software Inc. (VSI) in 2014. Noteworthy releases...
but took its most powerful form in VAX/VMS (later OpenVMS). DCL continues to be developed by VSI as part of OpenVMS. Written when the programming language...
the needed OpenVMS changes into the GTK Version 1.3 development stream, however this never materialised. The latest version of GTK for OpenVMS is version...
September 2022. "Why is Wednesday, November 17, 1858 the base time for OpenVMS (VAX VMS)?". Stanford University. 24 July 1997. Archived from the original on...
systems (including Linux, macOS, and BSD), Microsoft Windows and OpenVMS. The OpenSSL project was founded in 1998 to provide a free set of encryption...
Distributed Component Object Model (DCOM) was added to OpenVMS Alpha. In order to support DCOM, VMS was provided with implementations of the Windows Registry...
OpenJDK 8 to OpenVMS on the Itanium platform was released. The number of external contributions to OpenJDK is growing since project inception. OpenJDK...
management system for the OpenVMS operating system. It was originally released by Digital Equipment Corporation (DEC) in 1984 as VAX Rdb/VMS. Rdb was a component...
(On-Disk Structure-2) and higher levels of the Files-11 file system in OpenVMS. In addition to data, the file content, a file system also manages associated...
QUAD-Host--> 27/89 30mv 10.5mv (rms) VAX7000 VAX10000 DSSI SUPPORT IN OpenVMS: OpenVMS VAX V5.0-2: o Single- and Dual-Host support with 2 EDA640s (MicroVAX...
\Device\Null on Windows NT), NIL: on Amiga operating systems, and NL: on OpenVMS. In Windows Powershell, the equivalent is $null. It provides no data to...
Common Desktop Environment (CDE) is a desktop environment for Unix and OpenVMS, based on the Motif widget toolkit. It was part of the UNIX 98 Workstation...
systems such as OS-9 and most modern monolithic operating systems such as OpenVMS, Linux, BSD, SunOS, AIX, and MULTICS can dynamically load (and unload)...
ISBN 1-55580-769-0. DECnet-Plus manuals for OpenVMS are available at http://www.hp.com/go/openvms/doc/ DECnet Phase IV OpenVMS manuals for DECnet Phase IV; these...