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Virtual Memory System

   Also found in: Acronyms, Wikipedia 0.04 sec.
(operating system)Virtual Memory System - (VMS) DEC's proprietary operating system originally produced for its VAX minicomputer.

VMS V1 was released in August 1978. VMS was renamed "OpenVMS" around version 5.5. The first version of VMS on DEC Alpha was known as OpenVMS for AXP V1.0, and the correct way to refer to the operating system now is OpenVMS for VAX or OpenVMS for Alpha. The renaming also signified the fact that the X/Open consortium had certified OpenVMS as having a high support for POSIX standards.

VMS is one of the most secure operating systems on the market (making it popular in financial institutions). It currently (October 1997) has the best clustering capability (both number and distance) and is very scalable with binaries portable from small desktop workstations up to huge mainframes.

Many Unix fans generously concede that VMS would probably be the hacker's favourite commercial OS if Unix didn't exist; though true, this makes VMS fans furious.

FAQ.

Usenet newsgroup: news:comp.os.vms.



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Virtual concepts have since been used in many architectures and designs including: Virtual Address Extension (VAX); Virtual Circuit (VC); Virtual Machine (VM); MVS (Multiple Virtual Storage and became OS/390 and now is z/OS); Virtual Memory System (VMS); Virtual Private Network (VPN); Virtual Reality (VR); Virtual Storage Access Method (VSAM); Virtual Storage Extended (VSE; was DOS/VSE); Virtual Tape Subsystem (VTS); and Virtual Telecommunications Access Method (VTAM).
Storage Virtualization--Strategic For SANs by Moore, Fred / Computer Technology Review
Apple's advanced virtual memory system and multi-threading support ensure that FrontBase can scale to the needs of your applications, whether you're running your small business on an iMac, or powering your online store with a fleet of G4s.
FrontBase Inc. Unveils FrontBase 2.22 for Mac OS X by Business Wire
Linux, developed in 1991 by Linus Torvalds, is a free, multiuser, multitasking, demand-paged virtual memory system incorporating most, if not all, of the features found in the modern-day UNIX operating system.
Magic Software Announces Free Offering of Its Highly Productive ... by Business Wire
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