different types of media that can be used as source of information
Media (communication) Media is the collective communication outlets or tools that are used to store and deliver information or data.[1][2] It is either associated with communication media, or the specialized mass media communication businesses such as print media and the press, photography, advertising, cinema, broadcasting (radio and television) and publishing.[3]
Presentation layer The presentation layer is responsible for the delivery and formatting of information to the application layer for further processing or display.[4] It relieves the application layer of concern regarding syntactical differences in data representation within the end-user systems. An example of a presentation service would be the conversion of an EBCDIC-coded text computer file to an ASCII-coded file.