What are the applications of the Ruby language?

Ruby language is utilized in various fields including web development with Ruby on Rails, data analysis with libraries like NArray and SciRuby, automation scripting for tasks like system management and game development with frameworks like Gosu and Rubygame, desktop application development with GUI libraries such as Shoes and Tk, networking programming with libraries like EventMachine and Socket, as well as machine learning, API development, IoT, and blockchain. Additionally, its simplicity and readability make it popular for rapid prototyping and teaching purposes.