Multiple position teaching system

摘要

The system has a central computer (1), a large screen display (2) for displaying information from the central computer, several pointer devices (4-7), each associated with a position (3) which can be used to transfer data to the central computer. One or more pointer markers (8) are displayed on the large screen display. At least one pointer device can be selectively activated by the central computer. The central computer transfers the information from still or moving images to the large screen display. The information can be transferred from a keyboard and/or a digitising tablet to the central computer.