organic computers

new thought:
the human brain is simply an organic computer. That's been said before but I've been exploring the possibilities of that idea. Like a computer or micro controller the mind has input/output sensors, graphics processing, etc.
Does that mean that DNA is the binary code on which the mind runs? or is there another code? are there nuroscientists researching the signals that out brain sends and receives and trying to form it into a programmable language?

moreover, has anyone begun experimenting with actual organic computers? growing a simple multicelled system to respond to electrical stimuli in much the same way a ic circuit or switch does? seems like a field worth pursuing