(1) Computers only do what they're programmed to do (Lady Lovelace).
(a) A program is just a set of mechanical rules; many of our traits are programmed in that sense, e.g., the DNA code in our genes.
(b) If a programmer writes a programme it doesn't mean he knew in advance everything that it would/could do: A programmer could invent the DNA code.
(c) Programmes can be self-modifying, just as we are.
(d) Codes can be generated without a programmer (e.g., DNA).