diff --git a/src/simulator/mod.rs b/src/simulator/mod.rs
index f764fbd..03108e1 100644
--- a/src/simulator/mod.rs
+++ b/src/simulator/mod.rs
@@ -1,3 +1,12 @@
+//! This module implement an Instruction simulator
+//! with all the simulated hardware requested to run the Machine :
+//! - **MMU**
+//! - **Processor**
+//! - **RAM**
+//! - **Interruption Controler**
+//!
+//! The disk, the console and the serial coupler aren't implmented for now
+//!
 pub mod machine;
 pub mod error;
 pub mod instruction;