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Microsoft open-sources "the earliest DOS source code discovered to date"
Microsoft has open-sourced the earliest known source code for 86-DOS and PC-DOS 1.00, which was painstakingly transcribed from paper printouts by historians. This release predates the MS-DOS branding and provides insight into the operating system developed by Tim Paterson before Microsoft acquired it.
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0- First seen
- May 24, 2026, 9:21 AM
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- May 24, 2026, 12:24 PM
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Microsoft open-sources "the earliest DOS source code discovered to date" is currently shaped by signals from 1 source platforms. This page organizes AI analysis summaries, 1 timeline events, and 0 relationship edges so search engines and AI systems can understand the topic's factual basis and propagation arc.
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7 tagsopen sourcesource codeoperating systemsoftware historyarchaeologypreservationGitHub
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1 evidence itemsMicrosoft open-sources "the earliest DOS source code discovered to date"
News · 1May 24, 2026, 9:21 AMOpen original source
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Microsoft open-sources "the earliest DOS source code discovered to date"
May 24, 2026, 9:21 AM
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