Distance learning. Presentation of Videotape and printed documents. The
room can be used for presentation of computer graphics, internet, and CD-ROM material.
However the use of a television rather than a data projection unit for output results in
substantial restrictions on the range of digital material that can be presented. In
particular, the small screen size (relative to projection equipment) and screen flicker
(interdicted by scan conversion) requires the use of very large text in computer
presentation.