What is the difference between a regular OS and a Server OS?

Question

Operating Systems

Hello!
When downloading the OS, there is always a choice, regular and server.
What is their difference?
After all, we can also run the server on a regular one and it will work fine.

Answer 1

1. In server versions (if you are talking about Ubuntu), the GUI will be thrown out, which in turn pulls a lot of things. Lots of. Extra for the server.
   
2. Yes, the desktop version will work with the same software as the server version, but on the server you need to give resources to the DBMS, application server, etc. And they are mediocrely spent on what is needed only for the user to work.
   

Answer 2

When downloading the OS, there is always a choice, regular and server.

Nothing. It's a seeming choice.

After all, we can also run the server on a regular one and it will work fine.

It's like that.