What Does Open Virtual Memory System (OpenVMS) Mean?
Open Virtual Memory System (OpenVMS) is a 32-bit operating system developed by Digital Equipment Corporation (DEC) in 1979 as a computer server OS that runs on their VAX family of computers, which succeeded the PDP-11 line.
Techopedia Explains Open Virtual Memory System (OpenVMS)
OpenVMS was originally just called Virtual Memory System (VMS), but it was changed to OpenVMS when it was retooled to work for the Alpha processor family. The “Open” does not denote open source but rather it suggests the new added support for UNIX-like interfaces from the Portable Operating System Interface (POSIX) standard which includes standard C functions that can be ported to any POSIX-supporting system.
