This thesis is an examination of 20th century responses to the question of technology. Starting from the premise that philosophical responses to technology have traditionally fallen into two camps, namely instrumentalist and substantivist accounts, it begins by examining the work of Ellul and Heidegger as examples of the 'substantive' critique. In order to find an account better adapted to contemporary techno-social conditions it turns to Deleuze and Guattari's two volume Capitalism and Schizophrenia, arguing that the 'machinic philosophy' offered therein represents a distinct break with the instrumentalist and substantivist accounts.