Background, zombie, daemon and without ctty - are these concepts connected?

How these process concepts are related together - background, zombie, daemon and without controlling terminal? I feel that they are somehow close, especially through the concept of controlling terminal, but there is still not much info for me to tell a story, like if you need to explain something to a child reading an article about Linux without lying too much. **UPDATE #1: For example (I don't know if that's true)** * background -- zombie - foreground process can not become zombie, because zombie is a background process that was left without a parent * daemon -- without ctty - all daemons run without ctty, but not all processes withoutctty are daemons * background -- daemon - a background process can be retrieved to run interactively again, daemon is not * zombie -- without ctty - zombie is indifferent if there is ctty attached to it or not * background -- without ctty - processes sent to background while they have ctty, and become daemons or die if the ctty is taken from them