Code/Talk

I like the rewrite--the earlier stuff that made a big deal about codes being only symbolic->semantic is far more specialized than the ordinary English usage of the word, and belongs in an article of its own right, perhaps something related to information theory. Please don't place domain-specific stuff like that in articles whose titles are simple words--it implies that the field-specific meaning is the general one.

I also removed a reference that implied that the word "code" could mean "algorithm"; I've never seen this use in my 20 years of programming. "Code" always refers to the actual instruction text, not what it represents. --LDC