RTF is a cross-platform format for storing labeled text documents, created jointly by Microsoft and Adobe, as meta-tags for the format Word in 1982. Adobe has in 1985 continued to develop the format and created a language PostScript. The basis is a simple text format, control sequences which are not macros that are available for change, and teams with a fixed behavior.
This is the display format associated with the broadcast of slow-scan television. This legacy format was used to transmit a static image given limited bandwidth through the use of specialized software.