It's FOSS Apr 30, 2026 Microsoft Marks 45 Years of DOS by Open-Sourcing Its Oldest-Known Source Code Tim Paterson's 1981 assembler printouts are now transcribed, compilable, and MIT-licensed. Read Full Article on It's FOSS → 📋 Copy Link Sponsored UNIX and Linux System Administration Handbook View on Amazon Sponsored WD Black SN7100 1TB NVMe SSD View on Amazon Sponsored Blue Light Blocking Glasses View on Amazon As an Amazon Associate I earn from qualifying purchases. ← Back to all articles