The Ruby is a dynamic, open-source programming language known for its simplicity and productivity. It was created by Yukihiro Matsumoto in the mid-1990s and emphasizes an elegant syntax that is easy to read and write. Ruby supports multiple programming paradigms, including functional and object-oriented programming, making it versatile for various applications. One of the most popular frameworks built on Ruby is Ruby on Rails, which simplifies web application development. This framework follows the convention over configuration principle, allowing developers to create robust applications quickly. Ruby's active community contributes to a rich ecosystem of libraries and tools, enhancing its functionality and ease of use.