Git is important whether you are a programmer or not. Even writers can get a lot from git as git is essentially content screenshot version manager.
Git is merely just software on the computer and you can apply to any folder of the computer by running
git init. Git then says the screenshot when you commit the folder. Then you can move forward or backward in folder state using those commits.
GitHub is a company founded in 2008 by Tom Preston-Werner, Chris Wanstrath, Scott Chacon, P. J. Hyett. This company basic technology model was to save those screenshots (commits) online and can be accessed anywhere. It had two basic business models one was private account (paid one) where your folders (repos) could be accessed only by you or other authorised by you. The second model was public account (free) where you could save your repo free and can be accessed by anyone. This model gave a great boost to the OpenSource world.
GitHub is a subsidiary of Microsoft, which acquired the company in 2018 for $7.5 billion. As GitHub becoming the part of a large company (microsoft) now new large horizons are ahead.
Now Microsoft started many initiatives in GitHub to revolutionise humans. First was to allow private repos to be free now also up to max 5 collaborators on the project. Second huge initiative is GitHub Education.
GitHub has launched a new initiative called GitHub Education (https://education.github.com).
GitHub Education helps students, teachers, and schools access the tools and events they need to shape the next generation of software development.
GitHub has partnered with various online learning and paid computer tools and softwares for free.
Any student can signup and have all the benefits for free. First, sign up on github at https://www.github.com and add your university email address in your profile and then apply on https://education.github.com. They might need a photo of the university id card as well.
GitHub normally takes 3-4 days to verify the account and email is sent after success and then you can have all these softwares for free for some period.
The list of tools and benefits can be found at https://education.github.com/pack.
Note that these benefits are mostly related to software development based students and teachers.