devtake.dev — #retrocomputingArticles tagged retrocomputing on devtake.dev.https://devtake.dev/en-usMicrosoft open-sourced the earliest known DOS code, transcribed from a stack of Tim Paterson's printouts.https://devtake.dev/article/microsoft-dos-source-code-open-sourced/https://devtake.dev/article/microsoft-dos-source-code-open-sourced/MIT-licensed at GitHub on April 28, the 86-DOS 1.00 kernel and PC-DOS development snapshots were OCR'd from 45-year-old assembler listings.Sun, 03 May 2026 12:45:00 GMTopen-sourcemicrosoftdos86-dosopen-sourceretrocomputingmit-licensegithubtim-patersonsoren-vanek