# MS-DOS

**Repository Path**: mirrors/MS-DOS

## Basic Information

- **Project Name**: MS-DOS
- **Description**: MS-DOS v1.25 和 v2.0 源码 MS-DOS 是微软早期推出的磁盘操作系统，最初由西雅图公司（Seattle Computer）开发并命名为 86-DOS 
- **Primary Language**: 汇编
- **License**: MIT
- **Default Branch**: main
- **Homepage**: https://www.oschina.net/p/ms-dos
- **GVP Project**: No

## Statistics

- **Stars**: 43
- **Forks**: 24
- **Created**: 2018-09-29
- **Last Updated**: 2025-09-06

## Categories & Tags

**Categories**: os

**Tags**: None

## README

<img width="150" height="150" align="left" style="float: left; margin: 0 10px 0 0;" alt="MS-DOS logo" src="https://github.com/Microsoft/MS-DOS/blob/main/.readmes/msdos-logo.png">   

# MS-DOS v1.25, v2.0, v4.0 Source Code

This repo contains the original source-code and compiled binaries for MS-DOS v1.25 and MS-DOS v2.0, plus the source-code for MS-DOS v4.00 jointly developed by IBM and
Microsoft.

The MS-DOS v1.25 and v2.0 files [were originally shared at the Computer History Museum on March 25th, 2014]( http://www.computerhistory.org/atchm/microsoft-ms-dos-early-source-code/) and are being (re)published in this repo to make them easier to find, reference-to in external writing and works, and to allow exploration and experimentation for those interested in early PC Operating Systems.  

# License

All files within this repo are released under the [MIT License]( https://en.wikipedia.org/wiki/MIT_License) as per the [LICENSE file](https://github.com/Microsoft/MS-DOS/blob/main/LICENSE) stored in the root of this repo.

# For historical reference

The source files in this repo are for historical reference and will be kept static, so please **don’t send** Pull Requests suggesting any modifications to the source files, but feel free to fork this repo and experiment 😊.  

This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/).  For more information see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with any additional questions or comments.

# Trademarks

This project may contain trademarks or logos for projects, products, or services. Authorized use of Microsoft
trademarks or logos is subject to and must follow
[Microsoft's Trademark & Brand Guidelines](https://www.microsoft.com/legal/intellectualproperty/trademarks/usage/general).
Use of Microsoft trademarks or logos in modified versions of this project must not cause confusion or imply Microsoft sponsorship.
Any use of third-party trademarks or logos are subject to those third-party's policies.