windows - What's the difference between a "Keyboard Language" and an "Input Language"?

I see the same keyboard options underneath different languages, and it's confusing me...

What exactly is the difference between selecting an "input language" inside Windows, versus merely selecting the "keyboard layout"?

Answer

Language includes things like is it right to left, or left to right, and the keyboard layout is just "when you press A, you get a" and things like that.