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what is multi-touch on an interactive whiteboard? multitouch on Promethean LED screen (part 2 of 2) - YouTube
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Promethean ActivBoard 578 Pro – 78 "x 9200pixels Interactive Whiteboard + Black USB – NTSC, PAL, SECAM, Interactive Whiteboards and Accessories (18 V, 20 W, USB, 3 M, Mac OS X 10.4 Tiger;
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