# Windows CE 4.0
**Wikidata**: [Q4053164](https://www.wikidata.org/wiki/Q4053164)  
**Source**: https://4ort.xyz/entity/windows-ce-4-0

## Summary
Windows CE 4.0 is an embedded operating system developed by Microsoft as part of the Windows Embedded Compact series. It is designed for specialized devices and real-time applications, succeeding earlier versions of Windows CE and preceding Windows CE 5.0. The OS provides a lightweight, customizable platform for non-PC hardware.

## Key Facts
- **Developer**: Microsoft.
- **Part of series**: Windows Embedded Compact.
- **Succeeded by**: Windows CE 5.0 (released in 2004).
- **Instance of**: Operating system.
- **Manufacturer**: Microsoft.
- **Website**: [Microsoft Documentation](https://learn.microsoft.com/en-us/previous-versions/windows/embedded/ms920900(v=msdn.10)).
- **Edition or translation of**: Microsoft Windows.

## FAQs
### Q: Who developed Windows CE 4.0?
A: Windows CE 4.0 was developed by Microsoft, a multinational technology corporation headquartered in Redmond, Washington.

### Q: What is Windows CE 4.0 used for?
A: It is designed for embedded systems, powering specialized devices such as industrial controllers, medical equipment, and other non-PC hardware requiring a real-time operating system.

### Q: What succeeded Windows CE 4.0?
A: Windows CE 4.0 was followed by Windows CE 5.0, released in 2004, which continued Microsoft’s line of embedded operating systems.

## Why It Matters
Windows CE 4.0 played a critical role in Microsoft’s strategy to expand its software into embedded systems, a market distinct from traditional PCs. As part of the Windows Embedded Compact series, it provided developers with a modular, real-time operating system that could be tailored for devices with strict performance and reliability requirements. Its release reinforced Microsoft’s presence in the embedded technology sector, supporting applications in automotive, healthcare, and industrial automation. While not as widely recognized as consumer-facing Windows versions, CE 4.0 contributed to the growth of specialized computing solutions, enabling innovation in resource-constrained environments.

## Notable For
- Being part of the **Windows Embedded Compact** series, emphasizing real-time capabilities and customization.
- Serving as a precursor to **Windows CE 5.0**, which saw broader adoption in embedded devices.
- Offering a **lightweight, componentized architecture** optimized for non-PC hardware.

## Body
### Development Context
Windows CE 4.0 was developed by Microsoft as part of its efforts to adapt the Windows platform for embedded systems. Unlike general-purpose operating systems, CE 4.0 was designed for devices with limited resources, prioritizing real-time responsiveness and modularity.

### Technical Specifications
- **Architecture**: Component-based, allowing developers to select specific OS features for integration into target devices.
- **Purpose**: To power specialized hardware, such as point-of-sale terminals, industrial sensors, and navigation systems.
- **Compatibility**: Part of the broader Windows Embedded family, aligning with Microsoft’s ecosystem while maintaining distinct functionality for embedded environments.

### Legacy
Windows CE 4.0 was succeeded by **Windows CE 5.0** in 2004, which introduced improved kernel performance and better support for multimedia applications. The CE series continued to evolve, reflecting the growing demand for embedded systems in the 2000s. While later versions overshadowed CE 4.0, it remains a notable iteration in Microsoft’s embedded OS lineage.

## Schema Markup
```json
{
  "@context": "https://schema.org",
  "@type": "Software",
  "name": "Windows CE 4.0",
  "description": "An embedded operating system developed by Microsoft as part of the Windows Embedded Compact series.",
  "url": "https://learn.microsoft.com/en-us/previous-versions/windows/embedded/ms920900(v=msdn.10)",
  "developer": {
    "@type": "Organization",
    "name": "Microsoft"
  },
  "operatingSystemFamily": "Windows Embedded Compact",
  "sameAs": [
    "https://www.wikidata.org/wiki/Q8031115",
    "https://en.wikipedia.org/wiki/Windows_Embedded_Compact"
  ],
  "additionalType": "https://schema.org/OperatingSystem"
}