diff --git a/readme.md b/readme.md
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+++ b/readme.md
@@ -129,6 +129,7 @@
 - [Actions on Google](https://github.com/ravirupareliya/awesome-actions-on-google#readme) - Developer platform for Google Assistant.
 - [ESP](https://github.com/agucova/awesome-esp#readme) - Low-cost microcontrollers with WiFi and broad IoT applications.
 - [Deno](https://github.com/denolib/awesome-deno#readme) - A secure runtime for JavaScript and TypeScript that uses V8 and is built in Rust.
+- [DOS](https://github.com/balintkissdev/awesome-dos#readme) - Operating system for x86-based personal computers that was popular during the 1980s and early 1990s.
 
 ## Programming Languages