Introduction on virtual control system

Git is a free and open-source distributed version control system for tracking changes in source code and is used for software development.It allows you to record changes in your file over time so that you can access specific versions of your file later on.Git is basically a content tracker

GitHub is a Git repository hosting service, but it adds many of its own features. While Git is a command-line tool, GitHub provides a Web-based graphical interface. It also provides access control and several collaboration features, such as wikis and basic task management tools for every project.