Each media type is a member of one or more of these media groups. For example, the screen media type is a member of the continuous, visual, bitmap, interactive, and static media groups. Continuous or paginated media refers to the surface on which content is rendered. If the surface can always extend to hold all of the content, the media is considered continuous. If the surface has a limited size and additional surfaces must be created to hold all of the content, the media is said to be paginated.
Computer screens are continuous and printed pages are paginated.
We will talk about paginated media later in this chapter. If the user must use their ears to consume the content, then the media is said to be aural. If the user must use touch to consume the content, then the media is said to be tactile. Computer screens are visual, aural browsers are aural, and Braille printers are tactile. Grid or bitmap media refers to how the visual or tactile information is rendered.