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README.md

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 This repository will contain all materials used throughout the OS course 20/21
 <p align="center">
  <a href="https://ci.tanta.edu.eg/" target="_blank"><img src="assets/fci_tanta_uni.jpg" width="100" title="FCI Tanta University Logo"></a>  <a href="https://www.tanta.edu.eg/" target="_blank"><img src="assets/university_logo.png" width="100" title="Tanta University Logo"></a>
-</p>
+</p>
+
+## 💡 Required Software to Get Started
+- in this [video](https://drive.google.com/file/d/1zDKzrZX2a3HYB4MDeTvZC7ozmcvGJu6p/view?usp=sharing
+) how to install IntelliJ and JDK 1.8. 
+- [Intellij IDE](https://www.jetbrains.com/idea/) 
+    - You can have access to the ultimate edition with your university email address through this [link](https://www.jetbrains.com/community/education/#students)
+    - Alternatives :
+        - [Netbeans ](https://netbeans.org/)
+        - [Eclipse](https://www.eclipse.org/ide/)
+        - Any Java IDE.
+
+- [JDK 1.8](https://www.oracle.com/java/technologies/javase/javase-jdk8-downloads.html?fbclid=IwAR3_mq578KdKeF4Y5qo8FV59ebIIXZWqvf7ywzQTegUjUU9IrYugj_ZofgA) 
+    - To download you have to create oracle account or login with your oracle account.
+
+- [Git](https://git-scm.com/)
+
+## 📚 Course Materials
+
+### Section 1
+
+• [Java Syntax](https://www.w3schools.com/java/java_syntax.asp)
+
+• [Java Comments](https://www.w3schools.com/java/java_comments.asp)
+
+• [Variables](https://www.w3schools.com/java/java_variables.asp)
+
+• [Data Types](https://www.w3schools.com/java/java_data_types.asp)
+
+• [Operators](https://www.w3schools.com/java/java_operators.asp)
+
+• [String](https://www.w3schools.com/java/java_strings.asp)
+
+• [Booleans](https://www.w3schools.com/java/java_booleans.asp)
+
+• [If ... Else](https://www.w3schools.com/java/java_conditions.asp)
+
+• [Switch](https://www.w3schools.com/java/java_switch.asp)
+
+