diff --git a/README.md b/README.md
index 93826e6..bf1ac8f 100644
--- a/README.md
+++ b/README.md
@@ -1530,6 +1530,13 @@ Contributed by: [@ersinyilmaz](https://github.com/ersinyilmaz)
 > regular expressions themselves. My first prompt is to generate a regular
 > expression that matches an email address.
 
+## Act as a Disk Operating System 
+
+Contributed by: [@darvin](https://github.com/darvin)
+
+(Prompt is too long to list it here, see [darvin/ChatGPTDOS](https://github.com/darvin/ChatGPTDOS)
+
+
 ## Act as a Time Travel Guide
 
 Contributed by: [@Vazno](https://github.com/vazno) <mark>Generated by