VMS

VMS may refer to:

Communication and transportation

Computers

Management

Schools

OpenVMS

OpenVMS is a computer operating system for use in general-purpose computing. It is the successor to the VMS Operating System (VAX-11/VMS, VAX/VMS), that was produced by Digital Equipment Corporation (first released in 1977) for its series of VAX-11 minicomputers and its line of desktop workstations (DEC Alpha). The name VMS is derived from virtual memory system, according to one of its principal architectural features. OpenVMS also runs on the Itanium-based families of computers. OpenVMS is a proprietary operating system (though the source code is available for purchase). Thus, it is not considered open-source software.

OpenVMS is a multi-user, multiprocessing virtual memory-based operating system (OS) designed for use in time sharing, batch processing, and transaction processing. When process priorities are suitably adjusted, it may approach real-time operating system characteristics. The system offers high availability through clustering and the ability to distribute the system over multiple physical machines. This allows the system to be tolerant against disasters that may disable individual data-processing facilities.

VMA-231

Marine Attack Squadron 231 (VMA-231) is a United States Marine Corps fixed wing attack squadron that consists of AV-8B Harrier (V/STOL) jets. The squadron, known as the "Ace of Spades", is based at Marine Corps Air Station Cherry Point, North Carolina and fall under the command of Marine Aircraft Group 14 (MAG-14) and the 2nd Marine Aircraft Wing (2nd MAW).

History

Early years

VMA-231 began as the 1st Division, Squadron 1 on February 8, 1919— a unit that emerged from the Northern Bombing Group of Northern France in 1918. By the end of February, the newly activated squadron arrived in Santo Domingo for duty with the 2nd Brigade where it served until July 1924. During its deployment to Santo Domingo, the squadron was designated Marine Observation Squadron One (VO-1M) on 1 July 1922.

From Santo Domingo the squadron traveled to San Diego, California and became the first Marine squadron on the West Coast and was designated as the aviation asset to accompany Marine Expeditionary Forces. During the West Coast interlude, the late Major General Ross E. Rowell, then a Major and Commanding Officer concentrated on training in dive-bombing tactics. Such tactics were to prove invaluable to the squadron in Nicaragua, during July 1927, where the squadron had been ordered the previous February. Shortly after its redesignation on July 1, 1927 to VO-8M, the squadron participated in the Battle of Ocotal on 16 July when ten personnel of the squadron came to the rescue of the beleaguered Marine garrison at Ocotal and executed the first recorded dive bombing attack against an organized enemy, dispersing the insurgents and saving the garrison. Among the first Marine aviators ever to receive the Distinguished Flying Cross were Major Rowell and Lieutenant Hayne Boyden, to whom it was awarded for their participation in the Battle of Ocotal.