then they are functionally indistinguishable from my description of a human mind
Except for the fact they deal with different things to produce different things and each has a different purpose.
The soul of a person is different from the human mind.
And no, I still do not think functunionality determines whatness.
To say that because we can see a very general similiarity in functionality imlies that we are talking about the same thing is absurd. Youy might as well say that an axe and a blender are the same thing because they chop and slice. or that "a river and a flood and the ocean and a lake are the same thing because they have flowing water."
To say that "well both have a nature and accumalate data therefore the same thing" is to say that "computers are the same thing as human minds, and souls and animals and plants"
One will very quickly fall into absurdities if this is his process of thought.