diff --git a/Images/Pasted image 20250312155058.png b/Images/Pasted image 20250312155058.png
new file mode 100644
index 0000000..0e03f18
Binary files /dev/null and b/Images/Pasted image 20250312155058.png differ
diff --git a/Subjects/Backend development.md b/Subjects/Backend development.md
index 62780dd..a309ad6 100644
--- a/Subjects/Backend development.md	
+++ b/Subjects/Backend development.md	
@@ -29,5 +29,12 @@
 
 ### Web server
 
+![[Pasted image 20250312155058.png]]
+
++ Le moteur écoute les requête, sérialise les réponses, gère les imprévus, fait tourner le code de l'API
++ l'API est la partie programmable du serveur
+
+--
+