Ruby is a dynamic, object-oriented, general-purpose programming language. It was designed and developed in the mid-1990s by Yukihiro Matsumoto (aka "Matz") in Japan.

1. History of Ruby
2. Introduction to Ruby
3. Ruby Strings

• Ruby String Operators
• Ruby String Methods

4. Ruby Numbers

• Ruby Numbers Operations
• Ruby Numbers Methods

5. Ruby Arrays
6. Ruby Hashes