Thou Art Physics
Um, why would you say so certainly that the computer doesn't have free will?
After all, if we're talking about a computer that learns and is intelligent, then we can't dig up the code that makes all of that stuff happen directly - some of the code must trigger the learning, that learning then changes something (as a technical matter I can think of several ways to store the changes).
I don't think I'd definitely say that the computer has free will, but I don't think I'd definitely say that the computer doesn't, either. Especially as we don't have a clear definition of free will.