Difference Between Ruby and Rails.

Ruby and Rails are related but distinct technologies. Here's the difference between Ruby and Rails:

1. Ruby:

   - Ruby is a programming language created by Yukihiro Matsumoto in the mid-1990s.

   - It is known for its simplicity, readability, and elegant syntax, which emphasizes human-friendly code.

   - Ruby is an object-oriented language that supports multiple programming paradigms, including procedural, functional, and object-oriented programming.

   - It has a strong focus on developer productivity and aims to provide a pleasant programming experience.

2. Rails (Ruby on Rails):

   - Rails, also known as Ruby on Rails or simply ROR, is a web application framework written in Ruby.

   - Rails was developed by David Heinemeier Hansson and released in 2004.

   - It follows the Model-View-Controller (MVC) architectural pattern, which helps separate the concerns of an application's data, logic, and presentation layers.

   - Rails provides a set of conventions and abstractions that streamline web application development, making it faster and more efficient.

   - It includes built-in features and libraries for common tasks such as database integration, routing, session management, and HTML templating.

   - Rails promotes the principle of "Convention over Configuration," which means it makes assumptions about how things should be done, reducing the need for explicit configuration.

In summary, Ruby is the programming language, while Rails is a web application framework written in Ruby. Ruby provides the foundation and syntax for writing code, while Rails builds on top of Ruby to provide a structure and set of tools specifically for web application development. Ruby on Rails combines the power of Ruby's expressive language with the productivity and efficiency of the Rails framework, making it a popular choice for developing web applications.