# XP/S5
**Wikidata**: [Q69981978](https://www.wikidata.org/wiki/Q69981978)  
**Source**: https://4ort.xyz/entity/xp-s5-q69981978

## Summary
XP/S5 is a supercomputer manufactured by Intel and part of the TOP500 list of supercomputers. It ran on the OSF/1 operating system and achieved a peak performance of 3.05 gigaflops in 1994, making it a significant system in early high-performance computing.

## Key Facts
- **Instance of**: Supercomputer
- **Manufacturer**: Intel (founded 1968-07-18, United States)
- **Operating System**: OSF/1 (Unix variant developed by the Open Software Foundation)
- **TOP500 System ID**: 1219
- **Performance**:
  - Rmax: 1.9 gigaflops (1994-11-01)
  - Rpeak: 3.05 gigaflops (1994-11-01)
- **Processor Cores**: 61
- **Inception**: 1994 (performance metrics date)
- **Country of Origin**: United States (Intel headquarters in Santa Clara, CA)

## FAQs
### Q: What company built XP/S5?
A: XP/S5 was manufactured by Intel, an American multinational technology company specializing in semiconductors.

### Q: What operating system did XP/S5 use?
A: XP/S5 ran on OSF/1, a Unix variant developed by the Open Software Foundation.

### Q: What was XP/S5's peak performance?
A: XP/S5 achieved a peak performance of 3.05 gigaflops in November 1994.

### Q: How many processor cores did XP/S5 have?
A: XP/S5 had 61 processor cores.

### Q: Where was Intel headquartered when XP/S5 was built?
A: Intel was headquartered in Santa Clara, California, at the time of XP/S5's development.

## Why It Matters
XP/S5 was a notable supercomputer in the early 1990s, contributing to the advancement of high-performance computing. With a peak performance of 3.05 gigaflops, it demonstrated Intel's capabilities in building powerful computing systems. Its inclusion in the TOP500 list highlights its significance in the field of supercomputing. The system's use of OSF/1, a Unix variant, also reflects the era's reliance on Unix-based operating systems for high-performance computing.

## Notable For
- **TOP500 Ranking**: Listed as system ID 1219, indicating its position among the world's most powerful supercomputers.
- **Performance Metrics**: Achieved 1.9 gigaflops (Rmax) and 3.05 gigaflops (Rpeak) in 1994, showcasing its computational power.
- **Processor Architecture**: Equipped with 61 processor cores, reflecting the era's focus on parallel processing.
- **Operating System**: Ran on OSF/1, a Unix variant, aligning with the industry standard for supercomputing at the time.
- **Manufacturer**: Built by Intel, a leading semiconductor company, demonstrating its role in high-performance computing.

## Body
### Overview
XP/S5 is a supercomputer manufactured by Intel and part of the TOP500 list of supercomputers. It was notable for its performance and inclusion in early high-performance computing systems.

### Technical Specifications
- **Performance**:
  - Rmax: 1.9 gigaflops (1994-11-01)
  - Rpeak: 3.05 gigaflops (1994-11-01)
- **Processor Cores**: 61
- **Operating System**: OSF/1 (Unix variant)

### Manufacturer Details
- **Company**: Intel
  - Founded: 1968-07-18
  - Headquarters: Santa Clara, California, United States
  - Industry: Semiconductor and electrical industry

### Historical Context
- **Inception**: 1994 (performance metrics date)
- **TOP500 System ID**: 1219
- **Operating System**: OSF/1, developed by the Open Software Foundation

### Significance
- **High-Performance Computing**: XP/S5 contributed to the advancement of supercomputing in the early 1990s.
- **Performance**: Achieved notable gigaflops metrics, reflecting its computational power.
- **Processor Architecture**: Used 61 processor cores, demonstrating the era's focus on parallel processing.