In the History of Interface course we will study key examples of user interfaces from the late 19th century to the present that fall into three themes: Operating the Machine will focus on physical peripherals and inputs for interacting with computer, Conversational User Interfaces will focus on spoken and written language for interaction, and finally Wearable and Gestural Interfaces will focus on devices worn on the body or that rely on gesture or movement. Students will learn to judge what makes a good interface, to identify and interpret precedents that influenced later user interfaces, and to reflect on the relationship between human needs and technology. Course activities include readings, in-depth studies of historical examples, written analysis, class discussions, and weekly reflections.