That's a pretty broad definition of computer, even moreso if you're going to claim that the way the human brain arrives at an answer is "specific computation". Moreover, its clearly not the definition used by the author of the article.
The author screwed up by considering only digital computers. You keep ignoring addressing my main counterclaim that there's multiple models of computation, the brain matches one pretty closely, and so it's likely computing and/or a computer.
The evidence I presented of alternative models of computation, neurons, and implementations in those models is here:
