Is the McDonald's cashier the "brains behind the operation" because they count change as part of their duties?
Counting change accurately is very important to the continued successful operation of a retail establishment. But it's menial work.
Even Wikipedia agrees with me:
> Alan Turing described the "human computer" as someone who is "supposed to be following fixed rules; he has no authority to deviate from them in any detail."
I think the term "human computer" is extremely misleading without the cultural context behind the term, i.e. that these people were essentially doing 5th grade math worksheets all day. Reading numbers, plugging them into a calculator (yes, really), and writing down the results.
Usually we call these mechanical turks?