diff --git a/content/roadmaps/101-backend/content/102-os-general-knowledge/readme.md b/content/roadmaps/101-backend/content/102-os-general-knowledge/readme.md
index c4a9305ec..286fe3ca8 100644
--- a/content/roadmaps/101-backend/content/102-os-general-knowledge/readme.md
+++ b/content/roadmaps/101-backend/content/102-os-general-knowledge/readme.md
@@ -1 +1,8 @@
# General Knowledge
+
+Operating System is a program that manages a computer’s resources, especially the allocation of those resources among other programs. Typical resources include the central processing unit (CPU), computer memory, file storage, input/output (I/O) devices, and network connections.
+
+Free Content
+What is an operating system?
+Operating Systems: Crash Course Computer Science #18
+Introduction to Operating System
\ No newline at end of file