whats C-D-G-A in power chords?

Johnny's in the basement, mixin' up the medicine.
I'm on the pavement, thinkin' 'bout the government.

please read the rules in the announcement at the top of this forum.
this doesn't fit in S&L. it's a music theory issue. it should be in G&BB or Musician Talk.
this will be closed or moved to one of those forums.
Quote by Jackal58
I release my inner liberal every morning when I take a shit.
Quote by SK8RDUDE411
I wont be like those jerks who dedicate their beliefs to logic and reaosn.