# MVS

> Operating system for IBM mainframes

**Wikidata**: [Q781443](https://www.wikidata.org/wiki/Q781443)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/MVS)  
**Source**: https://4ort.xyz/entity/mvs

## Summary
MVS (Multiple Virtual Storage, often called OS/VS2 or IBM MVS) is an operating system for IBM mainframe computers. It was developed by IBM and first published in 1974 to run on IBM System/370 and later IBM S/390 platforms.

## Key Facts
- MVS is an instance of an operating system (software that manages computer hardware resources).  
- Developer: IBM (American multinational technology corporation).  
- Publication date: 1974.  
- Primary platforms: IBM System/370 and IBM S/390.  
- Version listed: 2.2.  
- License: proprietary.  
- Replaces: OS/360 and OS/VS2.  
- Common aliases: Multiple Virtual Storage, OS/VS2, MVS operating system, IBM MVS.  
- Identifiers: BabelNet ID 01234691n; Freebase ID /m/04z3c.  
- Wikipedia title: MVS; available in multiple languages (ca, cs, de, en, es, fa, fr, it, ja, ko).

## FAQs
### Q: What is MVS?
A: MVS (Multiple Virtual Storage) is an operating system developed by IBM for its mainframe computers. It provides the operating system services required to run on IBM System/370 and IBM S/390 platforms.

### Q: When was MVS first published?
A: MVS was first published in 1974.

### Q: Who developed MVS?
A: MVS was developed by IBM.

### Q: What did MVS replace?
A: MVS replaced earlier IBM operating systems OS/360 and OS/VS2.

## Why It Matters
MVS matters because it is the IBM-developed operating system specifically created for IBM mainframe hardware families (System/370 and later S/390). As an operating system, MVS provides the core software layer that manages hardware resources and enables the execution of applications on IBM mainframes. Published in 1974 and distributed under a proprietary license, MVS succeeded prior IBM systems (OS/360 and OS/VS2), representing a continuity and evolution in IBM’s mainframe operating environment. Its multiple aliases (including Multiple Virtual Storage and OS/VS2) and the existence of a named version (2.2) reflect its role as an established platform component within the IBM mainframe ecosystem. The system is documented across multiple language Wikipedias and referenced in knowledge bases (BabelNet, Freebase), indicating sustained reference and historical interest in the product within computing and archival records.

## Notable For
- Being the IBM-developed operating system targeted at IBM System/370 and later IBM S/390 mainframe platforms.  
- Publication in 1974 as the successor to OS/360 and OS/VS2.  
- Known by several aliases, most prominently "Multiple Virtual Storage" and "OS/VS2."  
- Distributed under a proprietary license and tracked in reference databases (BabelNet, Freebase).  
- Presence in multiple-language Wikipedias and a dedicated Wikipedia title (MVS).

## Body
### Overview
- Name: MVS (Multiple Virtual Storage).  
- Also known as: OS/VS2, MVS operating system, IBM MVS.  
- Class: Operating system (software that manages computer hardware resources).  
- Wikidata description: Operating system for IBM mainframes.

### Development and Publication
- Developed by: IBM.  
- Publication date: 1974.  
- Developer identifiers and context include IBM as the creating organization.

### Platforms and Compatibility
- Primary platforms: IBM System/370 and IBM S/390.  
- Intended deployment: IBM mainframe computers.

### Versioning and Licensing
- Noted version: 2.2.  
- License model: proprietary license.

### Relationship to Other IBM Systems
- Replaces: OS/360 and OS/VS2.  
- Alias overlap: OS/VS2 appears both as an alias and as a replaced system in the provided data.

### Identifiers and References
- Wikipedia title: MVS; available in languages: ca, cs, de, en, es, fa, fr, it, ja, ko.  
- Sitelink count: 15.  
- BabelNet ID: 01234691n.  
- Freebase ID: /m/04z3c.  
- Example image: https://commons.wikimedia.org/wiki/Special:FilePath/IBM_370-145_2.png (caption qualifier: "IBM System/370 kjørte MVS").

### Related Systems
- Related entity types include the operating system class and other mainframe operating systems (e.g., Special Real Time Operating System, VOS3 are listed as related in the provided data).

## References

1. Freebase Data Dumps. 2013
2. BabelNet