# High Performance File System

> filesystem created for OS/2 operating system

**Wikidata**: [Q127319](https://www.wikidata.org/wiki/Q127319)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/High_Performance_File_System)  
**Source**: https://4ort.xyz/entity/high-performance-file-system

## Summary
High Performance File System (HPFS) is a file system developed for the OS/2 operating system, created by Microsoft and IBM in 1989. It was designed to optimize performance for high-end computing environments, leveraging assembly language for efficiency. HPFS was a key component of OS/2's file management system, though it later faced competition from other file systems.

## Key Facts
- **Aliases**: HPFS
- **Developers**: Microsoft and IBM
- **Instance of**: File system
- **Publication date**: November 1989
- **Programming language**: Assembly language
- **Wikipedia languages**: Available in 20 languages including Arabic, German, and Japanese
- **Sitelink count**: 21
- **Freebase ID**: /m/0k_q0
- **Wikipedia title**: High Performance File System

## FAQs
**What is High Performance File System (HPFS)?**
HPFS is a file system designed for the OS/2 operating system, developed collaboratively by Microsoft and IBM in 1989. It was optimized for performance in high-end computing environments, using assembly language to enhance efficiency.

**Who developed HPFS?**
HPFS was developed jointly by Microsoft and IBM, reflecting their collaborative efforts in the late 1980s to create a high-performance file system for OS/2.

**When was HPFS created?**
HPFS was published in November 1989, marking a significant development in file system technology for the OS/2 platform.

**What programming language was HPFS written in?**
HPFS was implemented using assembly language, which allowed for direct hardware-level optimization and improved performance.

**Is HPFS still in use today?**
While HPFS was a notable file system for OS/2, its usage has declined over time as other file systems gained prominence in modern computing environments.

## Why It Matters
HPFS played a crucial role in the evolution of file systems for the OS/2 operating system, offering enhanced performance through its assembly language implementation. Its development by Microsoft and IBM demonstrated the companies' commitment to advancing file management technologies. However, HPFS eventually faced competition from other file systems, leading to its eventual decline in relevance. Despite its limited longevity, HPFS remains a historical milestone in the development of file system architectures.

## Notable For
- **Collaborative Development**: HPFS was one of the first major file systems developed jointly by Microsoft and IBM, showcasing their partnership in the late 1980s.
- **Assembly Language Optimization**: Its use of assembly language allowed for direct hardware-level optimizations, which were crucial for its performance in high-end computing environments.
- **OS/2 Integration**: HPFS was a key component of the OS/2 operating system, providing a robust file management solution for the platform.

## Body
### History
High Performance File System (HPFS) was developed in November 1989 by Microsoft and IBM as part of the OS/2 operating system. The project aimed to create a file system optimized for performance in high-end computing environments. HPFS was designed to leverage assembly language, which allowed for direct hardware-level optimizations, enhancing its efficiency compared to other file systems of the time.

### Development
HPFS was a collaborative effort between Microsoft and IBM, reflecting the companies' shared goal of advancing file system technology. The development process involved close coordination between the two organizations, ensuring that HPFS met the performance requirements of the OS/2 platform. Assembly language was chosen for its ability to provide low-level control over system resources, which was critical for achieving the desired performance levels.

### Technical Features
HPFS utilized assembly language to implement its core functionalities, which allowed for direct hardware-level optimizations. This approach enabled HPFS to deliver superior performance in high-end computing environments. The file system was integrated into the OS/2 operating system, providing a robust solution for file management. However, as other file systems gained prominence, HPFS's relevance declined over time.

### Impact
HPFS made a significant impact on the development of file systems for the OS/2 operating system. Its assembly language implementation set a new standard for performance in file management. The collaborative development between Microsoft and IBM demonstrated the companies' commitment to innovation in the late 1980s. Despite its eventual decline, HPFS remains a notable example of early efforts to optimize file systems for high-performance computing.

### Legacy
HPFS's legacy lies in its role as a pioneering file system for the OS/2 platform. Its development marked an important milestone in the evolution of file management technologies. While HPFS is no longer widely used, it continues to be studied as a historical example of collaborative software development. The file system's use of assembly language remains a testament to the importance of low-level optimizations in achieving high performance.

## References

1. Freebase Data Dumps. 2013