diff --git a/School/Analyse/OSI Model.md b/School/Analyse/OSI Model.md
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@@ -1,4 +1,16 @@
 # OSI Model
 The OSI Model is a layered protocol model. It was proposed by the International Organization for Standardization. 
 
-![[OSI-model.png]]
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+![[OSI-model.png]]
+
+The model can be used as a reference to understand how networks operate. The model was created to have a sta
+
+As you can see the model has 7 layers. Each layer has their own responsibility.
+
+## Physical Layer
+## Data Link Layer
+## Network Layer
+## Transport Layer
+## Session Layer
+## Presentation Layer
+## Application Layer
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