GitHub is a place where you can share your code and collaborate with others on a common project using Git. Git is a source version control platform invented and created by Linus Trovalds, who started Linux but had a problem maintaining Linux development with a large number of developers contributing to it. He created a de-centralized version control where anyone could get the entire code (called cloning or forking), make changes, then push them back to the central repository to be merged with other developers' code. Git became the preferred method for many developers to work together on projects. You can learn how to code in Git interactively with this 15-minute course offered by GitHub: https://try.github.io.
GitHub is the website that hosts those projects, which is versioned using Git. It's like a developer social media platform, where you...