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Microsoft open-sources "the earliest DOS source code discovered to date"

🚀 Unveiling the Dawn of DOS: Microsoft's Historic Open-Source Move



Microsoft has open-sourced the earliest DOS source code discovered to date, providing a unique glimpse into the foundational layers of personal computing. This release allows developers and historians to explore the evolution of DOS, enhancing understanding of early computer systems and their lasting impact on modern technology.

2:05 am, May 24, 2026

guid

https://news.ycombinator.com/item?id=48253386

source_url

https://arstechnica.com/gadgets/2026/04/microsoft-open-sources-the-earliest-dos-source-code-discovered-to-date/

author_name

DamnInteresting

id: 3106
uid: 79fMl
insdate: 2026-05-24 02:05:06
title: Microsoft open-sources "the earliest DOS source code discovered to date"
additional:

🚀 Unveiling the Dawn of DOS: Microsoft's Historic Open-Source Move



Microsoft has open-sourced the earliest DOS source code discovered to date, providing a unique glimpse into the foundational layers of personal computing. This release allows developers and historians to explore the evolution of DOS, enhancing understanding of early computer systems and their lasting impact on modern technology.
category: Hacker News
md5:
guid: https://news.ycombinator.com/item?id=48253386
source_url: https://arstechnica.com/gadgets/2026/04/microsoft-open-sources-the-earliest-dos-source-code-discovered-to-date/
updated:
image:
author_name: DamnInteresting
author_link:
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