Media history here refers to the application of historical methods to the study of digital communications media and technology. In this form of digital history, rather than the digital being the means of historical analysis, it is the object of historical analysis. Examples range from theorizing how digital / new media affects the methods and study of history to software, critical code, and video game studies.
Digital history and public history are often synonymous because digitization facilitates dissemination and access, enabling historians to reach broader audiences.
Medieval studies are a prominent subset of digital history, as it is the home of a number of early adopters, including the founder of digital humanities, Roberto Busa.