# XP/S2
**Wikidata**: [Q69824726](https://www.wikidata.org/wiki/Q69824726)  
**Source**: https://4ort.xyz/entity/xp-s2-q69824726

## Summary
XP/S2 is a supercomputer manufactured by the American technology company Intel. It runs on the OSF/1 operating system and utilizes 28 processor cores. As of June 1994, the system achieved a maximum performance (Rmax) of 0.88 gigaflops.

## Key Facts
*   **Classification:** Supercomputer
*   **Manufacturer:** Intel (American multinational technology company)
*   **Operating System:** OSF/1 (a variant of Unix developed by the Open Software Foundation)
*   **Processor Cores:** 28
*   **TOP500 System ID:** 888
*   **Performance (June 1994):**
    *   Rmax: 0.88 gigaflops
    *   Rpeak: 1.4 gigaflops

## FAQs
### Q: Who manufactured the XP/S2?
A: The XP/S2 was manufactured by Intel, a major American technology company known for its work in the semiconductor industry.

### Q: What operating system does the XP/S2 use?
A: The XP/S2 runs on OSF/1, a variant of the Unix operating system developed by the Open Software Foundation.

### Q: What was the processing power of the XP/S2?
A: In June 1994, the XP/S2 recorded an Rmax (max performance) of 0.88 gigaflops and an Rpeak (theoretical peak performance) of 1.4 gigaflops.

## Why It Matters
The XP/S2 serves as a historical marker in the evolution of high-performance computing during the early 1990s. Manufactured by Intel—predominantly known for its semiconductors and microprocessors—the XP/S2 represents the company's direct engagement in the supercomputer hardware market. Unlike standard commercial servers, this system was designed for high-performance tasks, leveraging a then-significant 28 processor cores.

Its inclusion in the TOP500 list (System ID 888) validates its role as a competitive computing resource of its time. The use of OSF/1 also highlights the operating system diversity of the era, before Unix variants largely consolidated or were replaced by Linux in the supercomputing sector. The XP/S2 illustrates the transition period where major chip manufacturers began building complete supercomputing systems to showcase their processor capabilities.

## Notable For
*   **Intel Manufacturing:** Distinguished by being a full supercomputer system produced by Intel, rather than just utilizing Intel components.
*   **OSF/1 Implementation:** Utilized OSF/1, a significant Unix variant developed by the Open Software Foundation, distinguishing it from systems running AT&T Unix or BSD.
*   **TOP500 Ranking:** Holds System ID 888 on the TOP500 supercomputer rankings, providing a verified benchmark of its capabilities in mid-1994.
*   **Specific Core Configuration:** Featured a 28-core architecture, a specific configuration documented in performance records from 1994.

## Body
### System Overview
The XP/S2 is classified as a supercomputer. It is a distinct entity in the lineage of high-performance computing machines, notable for its specific hardware and software configuration.

### Hardware and Manufacturer
The system was manufactured by **Intel**. Founded in 1968 and headquartered in Santa Clara, California, Intel is a leader in the semiconductor industry. The XP/S2 utilized a configuration of **28 processor cores** to achieve its computational output.

### Operating Environment
The XP/S2 operated using **OSF/1**. This operating system is a variant of Unix that was developed by the Open Software Foundation. OSF/1 was distinct from other Unix variants available at the time, such as Tru64 UNIX (which shares a class relationship in historical records).

### Performance Metrics
The performance of the XP/S2 was officially recorded in the TOP500 Supercomputer Sites list. The specific metrics recorded for **June 1, 1994**, are as follows:
*   **TOP500 System ID:** 888
*   **Rmax (Max Performance):** 0.88 gigaflops
*   **Rpeak (Theoretical Peak):** 1.4 gigaflops
*   **Additional Rmax Record:** Some data sources also cite an Rmax of 0.87 gigaflops for the same timeframe, though 0.88 is the primary listed high value.