The course approaches the concept of technology through a critical sociological view. It is a prerequisite that technology is influenced by the structure and functio of social institutions. In pursuing the above goal, the course focuses on the major technological systems and networks that are being developed in the early 20th century as well as on the development of engineering studies in Europe and the United States. Technological systems of the early 20th century are directly related to a way of thinking and organization that will be the main subject of the course, while at the same time the engineers will be to a large extent the focus of this study. During the course an attempt is made to highlight, especially for Greece, what it means to be an engineer, whether this identity is gendered, what are the roles of engineers and their education, how they shaped their professional communities as well as what kind of production, use and ideological intake of technology were promoted in the early 20th century.