# VSE

> IBM mainframe operating system, originally designed for smaller mainframes, successor to DOS/360

**Wikidata**: [Q289345](https://www.wikidata.org/wiki/Q289345)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/VSE_(operating_system))  
**Source**: https://4ort.xyz/entity/vse

## Summary
VSE is an IBM mainframe operating system originally designed for smaller mainframes and is the successor to DOS/360. It runs on IBM's z/Architecture platform and is developed by IBM.

## Key Facts
- VSE is an IBM mainframe operating system that succeeded DOS/360
- It runs on the z/Architecture platform
- The operating system is developed by IBM, a multinational technology corporation founded in 1911
- VSE has multiple aliases including DOS/VSE, z/VSE, and VSE/ESA
- The official website is https://www.ibm.com/it-infrastructure/z/zvse
- VSE is classified as an operating system (instance of: operating system)
- It has Wikipedia articles in 9 languages including English, German, French, and Japanese
- VSE has 9 sitelinks on Wikidata
- The operating system is associated with IBM's CICS transaction management application
- VSE replaced the DOS/360 operating system

## FAQs
### Q: What does VSE stand for?
A: VSE stands for Virtual System Environment, which is an IBM mainframe operating system designed for smaller mainframes.

### Q: What platform does VSE run on?
A: VSE runs on IBM's z/Architecture platform, which is designed for mainframe computers.

### Q: Who developed VSE?
A: VSE was developed by IBM, the American multinational technology corporation founded in 1911.

### Q: What operating system did VSE replace?
A: VSE is the successor to DOS/360, an earlier IBM mainframe operating system.

### Q: Is VSE still in use today?
A: While specific current usage data isn't provided in the source material, VSE continues to be supported by IBM as part of their mainframe operating system portfolio.

## Why It Matters
VSE matters because it represents a significant evolution in IBM's mainframe operating system lineage, providing a more advanced and capable platform for smaller mainframe systems compared to its predecessor DOS/360. As part of IBM's mainframe ecosystem, VSE plays a crucial role in supporting enterprise-level computing needs, particularly for organizations that rely on mainframe infrastructure for their critical business operations. The operating system's continued development and support demonstrate IBM's commitment to maintaining compatibility and functionality across their mainframe product line, ensuring that businesses can run legacy applications while also benefiting from modern mainframe capabilities. VSE's integration with other IBM mainframe technologies like CICS makes it an important component in the broader IBM mainframe computing environment.

## Notable For
- Being the direct successor to DOS/360, representing a significant advancement in IBM's mainframe operating system technology
- Running on IBM's z/Architecture platform, which provides modern mainframe capabilities
- Supporting multiple aliases and versions including z/VSE and VSE/ESA, showing its evolution over time
- Integration with IBM's CICS transaction management system, making it a key component in enterprise computing environments
- Maintaining a presence across multiple language Wikipedias, indicating its global relevance in the mainframe computing community

## Body
### Technical Foundation
VSE operates on IBM's z/Architecture platform, which is specifically designed for mainframe computers. This architecture provides the foundation for VSE's capabilities in handling enterprise-level computing tasks and supporting mission-critical applications.

### Development History
As a successor to DOS/360, VSE represents an evolution in IBM's mainframe operating system development. The operating system has gone through various iterations and versions, including VSE/ESA and z/VSE, each building upon the previous versions' capabilities.

### Integration with IBM Ecosystem
VSE is designed to work seamlessly with other IBM mainframe technologies, particularly CICS (Customer Information Control System), which is IBM's transaction management application. This integration allows VSE to support complex enterprise applications that require robust transaction processing capabilities.

### Global Presence
The operating system maintains documentation and support across multiple languages, with Wikipedia articles available in nine different languages. This multilingual support reflects VSE's importance in the global mainframe computing market.

### Current Status
While specific current usage statistics aren't provided in the source material, VSE continues to be part of IBM's mainframe operating system portfolio, with an official website maintained by IBM at https://www.ibm.com/it-infrastructure/z/zvse. This ongoing support indicates that VSE remains relevant for organizations using IBM mainframe infrastructure.

## References

1. Freebase Data Dumps. 2013