Understanding the basics of Git and GitHub [closed]

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I don’t fully understand the purpose of using Git or Github; I know it helps to keep track of your changes and it’s helpful for people collaborating with other people, but I don’t collaborate with anybody so I don’t know if this would be helpful for me.

I usually work as a web designer/developer but I never have to collaborate. I know in Git you have create, push, commit, create branches etc for every repository but…

  1. What is the difference between Git and GitHub?

  2. Is git saving every repository locally (in the user’s machine) and in GitHub?

  3. Can you use Git without GitHub? If yes, what would be the benefit for using GitHub?

  4. How does Git compare to a backup system such as Time Machine?

  5. Is this a manual process, in other words if you don’t commit you wont have a new version of the changes made?

  6. If are not collaborating and you are already using a backup system why would you use Git?

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