Projector hangs from ceiling and turns on and off automatically. External computer input over rides the internal computer. Built in podium in front of class. As labeled on podium . Control slides as marked on podium.
Projectors turn on by advancing to first slide.
They turn off automatically. As labeled, buttons on desk, the same controls are available on wall rack. Push the button located on wall rack to turn on monitors, insert video, system automatically goes into play. Control sound from volume control labeled on rack, above VHS machine. Push the button located on wall rack to turn on monitors, Hook Video to BNC connector.