What is github?

I don't know it professionally either, but to give you an answer

First of all, git is a kind of backup system called version management.

I'm writing a document at first Let's say you wrote "Hi" and saved it Later, I opened the document and saved it as 'Hello'. This is how the document content is

'Hello' -> 'Hello' -> 'Hello' -> 'Hello' If you say that and save it, the document will eventually contain only 'hello?'

But what happens when you suddenly have to go back to what you did in the past? If you don't keep saving it separately, you may not remember the content.

This is the version management system git.

'Hello' -> 'Hello' -> 'Hello' -> 'Hello?' Sign up for git in addition to saving documents in the middle of this process. Eventually, there will be 4 gits registered in this document file. At this time, if you want to go back to the old situation or want to know the old content, please call the git with the content so that the document can go back to the document can return to the old content.

Here's what git explains.

Then what is github? Well, I don't know if this is accurate, but I think it's probably right.

The regular git will be stored locally. (My computer's hard disk or SSD) But what if my hard disk or SSD fails and I can't recover the contents inside? Besides, what if you didn't back it up in an external hard drive or something? All the work that has been done so far will be lost.

You can say github is what you use here. You can register git locally and back it up online.ithub. This will keep it safe. (Unless there is a problem with github)

Other than this, if you want to work on your desktop at home and come out of your laptop, you can put it on your desktop at home and download it again from your laptop and continue working. When you do it again at home, you can upload it from your laptop and download it to your desktop. Because of these features, I understand that they are also used in collaboration.

I know that there are many other functions besides these points, but... I don't really know...

I don't know if I can use the code. Well, most of them are licensed, but I think you'll have to find out about it again.

To summarize,

 1. git is a version management system.
 2. github is a service that can be used for backup or collaboration.
 3. Some codes may or may not be used according to the license.

That's it.

There is a relatively easy summary of git and github, so I will add it.

http://www.slideshare.net/ianychoi/git-github-46020592