A Turing machine is a subset of computers. http://etymonline.com/index.php?term=computer&allowed_in_frame=0 http://etymonline.com/index.php?term=computer&allow

A Turing machine is a subset of computers. http://etymonline.com/index.php?term=computer&allowed_in_frame=0 http://etymonline.com/index.php?term=computer&allowed_in_fra... The level of complication necessary is "can compute stuff". Whether you want to include any kind of functional transformation as a computation or not is up to you.