Memory used to store graphics display instructions and data.
The text as it appears on the screen or in printout, with the Field Tags and File Markers not seen. Hypertext links, a third category of Mark-Up, are visible, because they are used to "jump" between related sections of the text. A display file on disk may be more than the information source on which it is based. In addition to Hypertext Links, it may contain new material at the beginning or end of the file to assist searching. For example, a list of synonyms, including terms not found in the text, may be placed at the end of the file. then, if a tern is not found in the text, it may be found on the synonym list, from which the user can Hypertext back to synonymous terms that do occur in the text.