This chapter introduces networks, contexts/ecologies, and innovations as the three main concepts that make technology pivotal for constructing contemporary societies, as well as many ideas of modernity. Technologies are not mere artifacts, but also sociotechnical networks made by distinct artifacts composed, in turn, by different elements belonging to various technical networks. Digitalization has exagerated and changed this process, which was present from the very beginning of modern technological history. Any multiple assemblage looks for its continuous existence in two different fields: at the mere technical level, on standardization and classification of elements and activities; and at a human and social level, on uses, habits, conventions, and practices.