# POWER4

> family of microprocessors developed by IBM

**Wikidata**: [Q2468681](https://www.wikidata.org/wiki/Q2468681)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/POWER4)  
**Source**: https://4ort.xyz/entity/power4

## Summary
POWER4 is a family of microprocessors developed by IBM, succeeding the POWER3 series and preceding the POWER5. It is part of IBM's broader POWER microprocessor architecture, known for its high-performance computing capabilities.

## Key Facts
- Part of the IBM POWER microprocessor series
- Developed by IBM, an American multinational technology corporation founded in 1911
- Succeeded the POWER3 family (1998) and was succeeded by the POWER5 family (2004)
- Uses the PowerPC instruction set architecture
- Includes schematic diagrams and images of the POWER4 chip
- Has 12 Wikipedia sitelinks and is categorized under "POWER4 microprocessors" on Wikimedia Commons
- Part of the model series classification in IBM's product lineup

## FAQs
### Q: Who developed the POWER4 microprocessor?
A: The POWER4 microprocessor was developed by IBM, an American multinational technology corporation.

### Q: What came before and after the POWER4?
A: The POWER4 succeeded the POWER3 (1998) and was succeeded by the POWER5 (2004).

### Q: What instruction set does POWER4 use?
A: POWER4 uses the PowerPC instruction set architecture.

### Q: Where can I find images of the POWER4 chip?
A: Images of the POWER4 chip, including schematics, are available on Wikimedia Commons.

### Q: What is the classification of POWER4 in IBM's product lineup?
A: POWER4 is classified as part of the model series in IBM's POWER microprocessor architecture.

## Why It Matters
POWER4 is significant in the history of high-performance computing as part of IBM's POWER series, which is known for its reliability and scalability in enterprise environments. It played a crucial role in bridging the gap between the POWER3 and POWER5 families, maintaining IBM's leadership in server and mainframe processors. The POWER architecture remains relevant in fields requiring robust, high-performance computing, such as data centers, scientific research, and financial institutions. Its development reflects IBM's commitment to innovation in microprocessor design, ensuring continued dominance in the enterprise computing market.

## Notable For
- Succeeded the POWER3 (1998) and preceded the POWER5 (2004)
- Part of IBM's POWER microprocessor series, known for high-performance computing
- Uses the PowerPC instruction set architecture
- Includes detailed schematic diagrams and images of the POWER4 chip
- Categorized under "POWER4 microprocessors" on Wikimedia Commons

## Body
### Overview
POWER4 is a family of microprocessors developed by IBM as part of the broader POWER architecture. It succeeded the POWER3 series and was succeeded by the POWER5, marking a transitional phase in IBM's high-performance computing lineup.

### Development and Timeline
- Developed by IBM, a company founded in 1911
- Succeeded the POWER3 family (1998)
- Preceded the POWER5 family (2004)
- Part of IBM's POWER microprocessor series, which includes 19 sitelinks

### Technical Specifications
- Uses the PowerPC instruction set architecture
- Includes schematic diagrams and images of the POWER4 chip on Wikimedia Commons
- Categorized under "POWER4 microprocessors" in Wikimedia Commons

### Classification and Usage
- Classified as a model series in IBM's product lineup
- Has 12 Wikipedia sitelinks and is part of the POWER architecture
- Relevant in enterprise computing, data centers, and scientific research

## Schema Markup
```json
{
  "@context": "https://schema.org",
  "@type": "Thing",
  "name": "POWER4",
  "description": "Family of microprocessors developed by IBM as part of the POWER architecture",
  "sameAs": [
    "https://www.wikidata.org/wiki/Q328",
    "https://en.wikipedia.org/wiki/POWER4"
  ],
  "additionalType": "ModelSeries"
}

## References

1. Freebase Data Dumps. 2013