Virtual Memory System, a multi-user, multitasking, virtual memory operating system that runs on the VAX and Alpha lines of minicomputers and workstations, originally developed by Digital Equipment Corporation. VMS was introduced in 1977 and the first customer version shipped in 1978 along with the first VAX minicomputer. The operating system was renamed to OpenVMS in the early 1990's. In 1998, Compaq acquired DEC. Compaq announced the port of the OS to the Itanium Processor Family in 2001. Subsequently, Hewlett Packard aquired Compaq and has maintained roadmaps for the OS, committing to the Itanium port, and they successfully demonstrated OpenVMS booted on an Itanium in early 2003. FreeVMS is an initiative to rewrite the OpenVMS operating system and associated utilities under a public license.
Please submit sites relevant to the DEC Command Language (DCL) and writing .COM files.

DCL

DCL, the DEC Command Language, is a programmable interactive command processor for the VMS operating system. DCL provides the most common command line interface for the VMS operating system. DCL may also be used to construct programs (.COM files).
Please submit sites relevant to the DEC Command Language (DCL) and writing .COM files.
Homepages for regional and national chapters of the Digital Equipment Computer Users Society (DECUS).
Please submit only official chapter homepages.
Reference materials and guides for using the VMS operating system.
Please submit general help materials for the VMS operating system. DCL materials may be directed to Top: Computers: Software: Operating Systems: Midrange: VMS: DCL

more information (editors only)

OpenVMS-specific security resources.
Please submit only OpenVMS-specific security resources. General security resources may be directed to Top: Computers: Security
Companies and organizations offering OpenVMS shell accounts.
Please submit only sites offering public OpenVMS shell accounts. Unix and GNU-Linux shell accounts may be directed to Top: Computers: Internet: Access Providers: Unix Shell Providers
Application and third party software for the VMS operating system.