Toshiba's T91 is a high contrast DLP projector equipped with a VGA camera. Jon Bray wonders if it's time to retire that dusty old OHP?

Even schools are beginning to see the benefits these days. Just as in a board room or auditorium situation, it's far easier to get a room of kids to hold their attention on a large screen than it is on a ten-year-old telly on its last legs flickering away in the corner.



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