Major topics in CS

I wish to learn at least a bit about each of the major disciplines of CS. Can you please list all major fields you can think of?

http://mind.sourceforge.net/aisteps.html

is your into to creating artificial intelligence
as the major be-all and end-all of Computer Science
and which is now finding expression as the German AI

http://code.google.com/p/mindforth/wiki/DeKi