microsoft/MS-DOS

Some data may be outdated — see provenance labels.

The original sources of MS-DOS 1.25, 2.0, and 4.0 for reference purposes observed · 2026-09-21

github.com/microsoft/MS-DOS · homepage · Assembly · MIT (permissive) · archived observed · 2026-09-21

Health v2 · maintenance only

10/100

Activity 0
Release rhythm 35
Longevity 100

Flags: no_releases archived

How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.

gap_med: n/a
age_days: 3039
days_rel: n/a
days_push: 908
n_releases_24m: 0

Full methodology

Adoption not part of the score

32273 stars · 4682 forks observed · 2026-09-21

What it is AI-extracted, prompt v1, taxonomy v1, 2026-10-05, confidence 0.97

MS-DOS is the original source code of Microsoft Disk Operating System versions 1.25, 2.0, and 4.0, released for reference under the MIT license. It provides a command‑line interface and basic file‑system services for early IBM PC compatible hardware.

Use cases

run legacy DOS applications on vintage hardware or emulators
study the architecture of early PC operating systems for educational purposes
experiment with low‑level assembly programming and OS development techniques
create custom DOS‑compatible tools or extensions for hobbyist projects
preserve computing history by archiving and analyzing original source code

When to choose

you need authentic MS-DOS source for historical research or teaching
you are building a DOS emulator or compatibility layer and require reference implementation
you want to explore assembly‑level OS design on x86 platforms

When to avoid

you need a modern, actively maintained operating system for production use
your project requires built‑in security features, networking stacks, or graphical interfaces not present in MS-DOS
you are looking for a cross‑platform OS with support for current hardware architectures

Facets

application · maturity maintenance

cli file-system operating-systems education cross-platform historical assembly ms-dos legacy-os monolithic-kernel operating-system computer-history x86 dos

5 sources

readme: https://github.com/microsoft/MS-DOS · fetched 2026-09-21 · d99f96705078
homepage: https://en.wikipedia.org/wiki/MS-DOS · fetched 2026-09-21 · 6ce6d5f49bfd
site_page: https://en.wikipedia.org/wiki/Wikipedia:About · fetched 2026-09-21 · 083c4e2b9dcd
site_page: https://en.wikipedia.org/wiki/Installable_File_System · fetched 2026-09-21 · 065f9ee62905
site_page: https://en.wikipedia.org/wiki/File:MS-DOS_6.2_Update_Install_Floppy_Discs_(German).jpg · fetched 2026-09-21 · cf07e350bbe7

Member repositories

Repository	Role	Health v2
microsoft/MS-DOS	main	10

For agents

markdown · JSON · MCP: product_card(name="microsoft/MS-DOS")

Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem