what the heck is GitHub and why are developers so excited about it? You may have heard that GitHub is a code sharing and publishing service, or that it’s a social networking site for programmers. Both statements are true, but neither explain exactly why GitHub is special.
At the heart of GitHub is Git, an open source project started by Linux creator Linus Torvalds. Matthew McCullough, a trainer at GitHub, explains that Git, like other version control systems, manages and stores revisions of projects. Although it’s mostly used for code, McCullough says Git could be used to manage any other type of file, such as Word documents or Final Cut projects. Think of it as a filing system for every draft of a document.