# Commodore DOS

> DOS

**Wikidata**: [Q353116](https://www.wikidata.org/wiki/Q353116)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Commodore_DOS)  
**Source**: https://4ort.xyz/entity/commodore-dos

## Summary
Commodore DOS is a DOS (disk operating system) developed and manufactured by Commodore International. It is associated with several Commodore floppy disk drive models, including the Commodore 1540/1541 series and other drives such as the 1571 and 1581.

## Key Facts
- Commodore DOS is an instance of the class **DOS** (a group of closely-related PC-compatible operating systems).
- Commodore DOS was developed by **Commodore International**.
- Commodore DOS was manufactured by **Commodore International**.
- Commodore DOS runs on / is required by the **Commodore 1540** floppy disk drive (for the Commodore VIC-20 home computer).
- Commodore DOS runs on / is required by the **Commodore 1541** external 5¼" floppy disk drive (for the Commodore C64 home computer).
- Commodore DOS runs on / is required by the **Commodore 1570** 5¼" floppy disk drive (for the Commodore 128 home/personal computer).
- Commodore DOS runs on / is required by the **Commodore 1571** floppy disk drive.
- Commodore DOS runs on / is required by the **Commodore 1581** 3.5" floppy disk drive (for C64/C128).
- Commodore DOS runs on / is required by the **Commodore 4040** floppy disk drive and the **Commodore 8050** 5¼-inch floppy disk drive.
- Reference identifiers include **Freebase** `/m/045j0q` and **C64 Wiki ID** `CBM-Dateisystem`.

## FAQs
### Q: What is Commodore DOS?
A: Commodore DOS is a disk operating system (DOS) developed and manufactured by Commodore International. It is associated with multiple Commodore floppy disk drive models.

### Q: What hardware is Commodore DOS associated with?
A: Commodore DOS runs on / is required by several Commodore floppy disk drives. These include the Commodore 1540, 1541, 1570, 1571, 1581, 4040, and 8050.

### Q: Who made Commodore DOS?
A: Commodore DOS was developed by Commodore International. It is also listed as being manufactured by Commodore International.

### Q: Where can I find Commodore DOS referenced online?
A: Commodore DOS has a Wikipedia title entry under “Commodore DOS” and appears across multiple Wikipedia languages (de, en, es, hu, it, ko, sv). It also has identifiers such as Freebase `/m/045j0q` and a C64 Wiki ID `CBM-Dateisystem`.

## Why It Matters
Commodore DOS matters because it is the DOS associated with a range of Commodore floppy disk drives used with notable Commodore home and personal computers. The source material links it directly to multiple drive models spanning different formats and product lines, including 5¼-inch drives (such as the Commodore 1540/1541 and 8050) and a 3.5-inch drive (the Commodore 1581). This makes it a key part of the software layer tied to Commodore’s disk storage ecosystem.

For researchers, collectors, and emulator or preservation communities, identifying “Commodore DOS” as a distinct DOS entity helps connect documentation and references across platforms (Wikipedia in multiple languages, C64 Wiki, and Freebase). It also clarifies provenance: Commodore International is explicitly listed as both developer and manufacturer. In short, Commodore DOS is a central label for the disk operating system component associated with several Commodore disk drive products.

## Notable For
- Being explicitly attributed to **Commodore International** as both developer and manufacturer.
- Being associated with a broad set of Commodore floppy disk drives, including **1540**, **1541**, **1570**, **1571**, **1581**, **4040**, and **8050**.
- Spanning multiple disk-drive formats in its associated hardware list (including **5¼-inch** and **3.5-inch** drives).
- Having cross-reference identifiers in multiple knowledge bases (Wikipedia, C64 Wiki `CBM-Dateisystem`, Freebase `/m/045j0q`).

## Body
### Classification
- Name: **Commodore DOS**
- Type: **DOS** (instance_of: DOS)
- Wikidata description: **DOS**

### Developer and Manufacturer
- Developer: **Commodore International**
- Manufacturer: **Commodore International**

### Runs on / Requires (Associated Hardware)
Commodore DOS is listed as running on / being required by the following Commodore floppy disk drives:
- **Commodore 1540** — floppy disk drive for the Commodore VIC-20 home computer
- **Commodore 1541** — external 5¼" floppy disk drive for the Commodore C64 home computer
- **Commodore 1570** — 5¼" floppy disk drive for the Commodore 128 home/personal computer
- **Commodore 1571** — floppy disk drive
- **Commodore 1581** — 3.5" floppy disk drive for C64/C128
- **Commodore 4040** — floppy disk drive
- **Commodore 8050** — 5¼-inch floppy disk drive

### Reference and Knowledge Base Identifiers
- Wikipedia title: **Commodore DOS**
- Wikipedia languages: **de, en, es, hu, it, ko, sv**
- C64 Wiki ID: **CBM-Dateisystem**
- Freebase ID: **/m/045j0q**

## Schema Markup
```json
{
  "@context": "https://schema.org",
  "@type": "Thing",
  "name": "Commodore DOS",
  "description": "Commodore DOS is a DOS (disk operating system) developed and manufactured by Commodore International and associated with multiple Commodore floppy disk drive models.",
  "sameAs": [
    "https://www.wikidata.org/wiki/Q11920",
    "https://en.wikipedia.org/wiki/Commodore_DOS"
  ],
  "additionalType": "DOS"
}

## References

1. Freebase Data Dumps. 2013