# ROM-DOS

> operating system

**Wikidata**: [Q45170588](https://www.wikidata.org/wiki/Q45170588)  
**Source**: https://4ort.xyz/entity/rom-dos

## Summary
ROM-DOS is an operating system developed by Datalight in 1989, designed to run on the Intel 80186 processor. It is notable for being one of the first operating systems to run on the IBM Simon smartphone, though it was also used in other embedded systems.

## Key Facts
- **Developer**: Datalight
- **Inception**: 1989
- **Platform**: Intel 80186
- **Instance of**: Operating system
- **Aliases**: Datalight DOS
- **Website**: [https://www.datalight.com/products/rom-dos/](https://www.datalight.com/products/rom-dos/)
- **Related to**: IBM Simon (smartphone model)
- **Part of**: COMMAND.COM (default command-line interpreter for DOS, Windows 95, Windows 98, and Windows ME)
- **Sitelink count**: 1 (Wikipedia page)

## FAQs
### Q: What is ROM-DOS, and who developed it?
A: ROM-DOS is an operating system developed by Datalight in 1989. It was designed to run on the Intel 80186 processor and was used in embedded systems, including the IBM Simon smartphone.

### Q: On which hardware was ROM-DOS primarily used?
A: ROM-DOS was primarily used on the Intel 80186 processor and was one of the first operating systems to run on the IBM Simon smartphone.

### Q: What is the relationship between ROM-DOS and COMMAND.COM?
A: ROM-DOS is part of COMMAND.COM, which serves as the default command-line interpreter for DOS, Windows 95, Windows 98, and Windows ME.

### Q: Is ROM-DOS still in use today?
A: ROM-DOS is no longer widely used, but it remains available as a legacy operating system, primarily for historical and embedded system applications.

## Why It Matters
ROM-DOS holds historical significance as one of the first operating systems designed for embedded systems and early smartphones. Developed in 1989 by Datalight, it was specifically tailored for the Intel 80186 processor and played a role in the IBM Simon, one of the earliest commercial smartphones. While it is no longer in widespread use, ROM-DOS represents an early innovation in mobile operating systems and embedded software. Its development marked a step toward more specialized, hardware-optimized operating systems, influencing later advancements in mobile and IoT technologies.

## Notable For
- Being one of the first operating systems to run on the IBM Simon smartphone.
- Running on the Intel 80186 processor, a key early embedded system chip.
- Being part of COMMAND.COM, a foundational component of early DOS and Windows systems.
- Developed by Datalight, a company known for its contributions to embedded and real-time operating systems.

## Body
### Overview
ROM-DOS is an operating system developed by Datalight in 1989. It was designed to run on the Intel 80186 processor, a key chip in early embedded systems. ROM-DOS was notable for its use in the IBM Simon, one of the first commercial smartphones.

### Development and Release
- **Developer**: Datalight, a company specializing in embedded and real-time operating systems.
- **Inception**: 1989.
- **Platform**: Intel 80186, a 16-bit processor used in early embedded systems.

### Usage and Significance
- **Primary Use**: ROM-DOS was primarily used in embedded systems, including the IBM Simon smartphone.
- **Relationship to COMMAND.COM**: ROM-DOS is part of COMMAND.COM, the default command-line interpreter for DOS, Windows 95, Windows 98, and Windows ME.
- **Legacy Status**: While no longer widely used, ROM-DOS remains available for historical and embedded system applications.

### Technical Details
- **Aliases**: Datalight DOS.
- **Website**: [https://www.datalight.com/products/rom-dos/](https://www.datalight.com/products/rom-dos/).
- **Sitelink Count**: 1 (Wikipedia page in Polish).

ROM-DOS represents an early innovation in mobile and embedded operating systems, influencing later developments in smartphone and IoT technologies. Its development marked a shift toward more specialized, hardware-optimized operating systems.