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The OpenVMS ( Virtual Memory System) operating system (OS) is a multi-user, multiprocessing OS that was designed by Digital (now owned by Hewlett-Packard) for use in time sharing, batch processing, and transaction processing. It originally ran on VAX systems, and was later ported to the DEC Alpha and Intel Itanium.
In April, 1975, DIGITAL embarked on a hardware project, code named Star, to design on a 32-bit32-bit is a term applied to processors, and computer architectures which manipulate the address and data in 32- bit chunks. It is also a term given to a generation of computers where 32-bit processors were the norm. The range of integer values that can be virtual address extension to its PDP-11The PDP-11 was a 16-bit minicomputer sold by Digital Equipment Corp. in the 1970s and 1980s. The PDP-11 was a successor to DEC's PDP-8 computer in the PDP series of computers. It had several uniquely innovative features, and was easier to program because. A companion software project, code named Starlet, was begun in June, 1975 to develop a totally new operating system, based on RSX-11RSX-11 A family of Real-time operating systems mainly for PDP-11 computers created by Digital Equipment Corporation (DEC), common in the late 1970s and early 1980s, designed for and much used in process control, but also popular for program development.M, for the Star family of processors. These two projects were tightly integrated from the beginning. Roger Gourd was the project lead for the Starlet program, with software engineers Dave CutlerDave Cutler (born March 13, 1942) is a noted software engineer, designer and developer of several operating systems including the RSX-11, VMS and VAXELN systems of Digital Equipment Corporation and Windows NT from Microsoft. Personal History David Neil Cu, Dick Hustvedt, and Peter Lipman acting as the technical project leaders, each having responsibility for a different area of the operating system. The Star and Starlet projects culminated in the VAX 11/780 computer and the VAX-11/VMS operating system.
Over the years the name of the product has changed. In 19801980 is a leap year starting on Tuesday. Events January-February January 1- April 1 National steel strike in United Kingdom January 1 Changes to the Swedish Act of Succession creates Victoria of Sweden, Crown Princess over her younger brother January 5 He it was renamed, with version 2.0 release, to VAX/VMS (at the same time as the VAX-11 computer was renamed to simply VAX). In 19911991 like 2002, is a palindromic year. It also has the same calendar as 2002, including Easter on March 31. It is a common year starting on Tuesday. Events January January 2 Sharon Pratt Dixon is sworn in as mayor of Washington, DC becoming the first blac it was renamed again to OpenVMS to indicate its support for industry standards such as POSIX and UnixUNIX (or Unix is a portable, multi-task and multi-user computer operating system originally developed by a group of AT&T Bell Labs employees including Ken Thompson, Dennis Ritchie and Douglas McIlroy. Unices The term Unices includes Unix and Unix-like ope compatibility, and to drop the hardware connection as the port to DIGITAL's 64-bit Alpha RISC processor was in process. The OpenVMS name first appeared with the version 5.5 release.