We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What is the Multiple Virtual Storage?

M. McGee
By
Updated Feb 15, 2024
Our promise to you
WiseGeek is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At WiseGeek, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

Multiple Virtual Storage, more commonly known as MVS, is a mainframe operating system (OS) developed by International Business Machines™ (IBM) in 1974. This was a direct upgrade to the Multiprogramming with a Variable number of Tasks (MVT) operating system that came on the market in 1967. Both MVT and MVS are still commonly-used terms for the current system, even though the official name has moved away from the abbreviations. The current version of the Multiple Virtual Storage system is totally backward-compatible with older versions of the OS as well as the UNIX™ operating system.

The history of Multiple Virtual Storage begins with the development of MVT. This OS was supposed to be the system of choice for large IBM™ mainframes. Subsequent delays and problems with the initial release kept people from fully adopting the system, and many people stuck with the current Multiprogramming with a Fixed number of Tasks (MFT) OS.

The release of Multiple Virtual Storage was supposed to be the kick start that would bring people over to the new system. It was released as an update to the current IBM™ operating systems, particularly MVT. The differences in the programming were so great that it was widely seen as a new system entirely. As a result, users almost immediately began calling it MVS, and IBM™ soon did as well.

The abbreviation MVS was included in the proper name of every release from 1978 with MVS/Special Edition (MVS/SE) to 1988 with MVS/Enterprise System Architecture (MVS/ESA). In 1995, IBM™ released OS/390. While this system didn’t include MVS in its name, it was the direct successor to the system. Since the OS/390 release, MVS has not been put back into the name of the system updates.

While most versions of Multiple Virtual Storage were simply basic improvements to the core system, MVS/Systems Program (MVS/SP) contained support for UNIX™ systems. Since its release in 1980, the availability of UNIX™ programs, coupled with the backward compatibility of the IBM™ operating system, has created a wealth of programming for the MVS system. This cemented the OS as one of the largest mainframe systems in use.

In addition to Multiple Virtual Storage, IBM™ has several other operating systems on the market. The Transaction Processing Facility (TPF) line works primarily with airlines and other bulk-processing organizations to keep records organized and secure. The Virtual Machine (VM) line emulates mainframe operations on non-mainframe computers, the most well-known version being the Hercules system. Lastly, IBM maintains several UNIX™ and UNIX™-like operating system extensions that allow popular the OSs made by other companies to work on their mainframes as the stand-alone OS.

WiseGeek is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
M. McGee
By M. McGee
Mark McGee is a skilled writer and communicator who excels in crafting content that resonates with diverse audiences. With a background in communication-related fields, he brings strong organizational and interpersonal skills to his writing, ensuring that his work is both informative and engaging.
Discussion Comments
M. McGee
M. McGee
Mark McGee is a skilled writer and communicator who excels in crafting content that resonates with diverse audiences....
Learn more
WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.

WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.