diff --git a/School/Analyse/OSI Model.md b/School/Analyse/OSI Model.md
index b768e2e..78eb3ab 100644
--- a/School/Analyse/OSI Model.md	
+++ b/School/Analyse/OSI Model.md	
@@ -1,12 +1,16 @@
 # OSI Model
-The OSI Model is a layered protocol model. It was proposed by the International Organization for Standardization. 
+The OSI Model is a layered protocol model. It was proposed by the International Organization for Standardization. The model can be used as a reference to understand how networks operate.
 
 ![[OSI-model.png]]
 
-The model can be used as a reference to understand how networks operate. The model was created to have a sta
+ The model was created to have a standard which hardware/software producers could use so that different products could work with each other.
+ 
+ For example, before this model was introduced, hardware from company A could not work together with hardware of company B because the protocols and techniques used were completely different.
 
 As you can see the model has 7 layers. Each layer has their own responsibility.
 
+Note: We dont actually "use" the OSI model, we mostly use the pTCP/IP]]
+
 ## Physical Layer
 ## Data Link Layer
 ## Network Layer