What is Botnet? What is Booters?  How it works? What language you need to learn to make something like it? Examples of it.

I know it's kind of DDos or Dos.

Why not "Google"? . Because I need something complete information about those things. So I can enter to those things knowing the things I'am about to enter. ( sorry for my english. idk how to english it. Sorry)

I'am not the person like " Oh cool, maybe i should google some botnets or booters then DDoS something like that yea cool. Now I look like a 6 year-old boy visiting some porn sites."