We often attribute 'understanding' and other cognitive predicates by metaphor and analogy to cars, adding machines, and other artifacts, but nothing is proved by such attributions.
John Searle
My car and my adding machine understand nothing: they are not in that line of business.
John Searle
I will argue that in the literal sense the programmed computer understands what the car and the adding machine understand, namely, exactly nothing.
John Searle