[Capt-RogerOver]

> has no more or less free will than a computer

Exactly. The only difference in our modern times is that a brain is orders of magnitude more complex than a computer. None of the scientists who are working on replicating the consciousness think that nowadays computers have comparable consciousness to a human. They all understand that the complexity needs to go up MANY times before we can talk about it. But it's still very clear that a consciousness (with free will and all other aspects of it) is definitely possible to have in a (future, much more advanced) computer.

> Your three sources of data for choosing your state n+1 are your state n, your perceptions of the world around you, and maybe some truly random factor.

That IS free will!

Perhaps you define it in some other way? If you say that "free will" is not possible if the decisions of such entity are based on some past experience (partly)? Well in that case there is no living entity that we know that have your definition of "free will", so what's the point of trying to recreate it? How would it even look?