@ranshii Do you know about @feditips ? Check out the website posted on their profile. It has answers to every "stupid" question I've had! (But, in short (which means not completely true, but close enough), a "server" is a computer.)
Mastodon is the best way to keep up with what's happening.
Follow anyone across the fediverse and see it all in chronological order. No algorithms, ads, or clickbait in sight.