Abstract

In 1936, Alan Turing proposed the notion of an automated machine as a model of the computation performed by a human being while only being aided by mechanical resources. Still, it seems that much more can be said about Turing’s own conception of machines in the scope of his later work, both terminologically and conceptually. In this paper we present the terms he used that refer to machines and that according to our understanding are important to give an account of Turing’s concerns and the problems he tackled with after his first recourse to the notion of machine during the late nineteen-thirties. Exploring his usage of such terms we show how it is possible to see an enlargement or extension towards a general notion of machine from the very first automated machine. At the same time, we identify in his work a modelling attitude or stance in which machines can be used as a way to understand and explain a natural or abstract phenomenon.