At the Nasdaq OMX Group, a single technician sits in front of eight flat-panel computer screens in a quiet operations center, 51 stories above the World Trade Center construction site.

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He also has a nice computer with two flat-panel monitors on his desk, which sits in the middle of the small trading floor where he and his team of 20 analysts work.

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Apple Computer announces faster Power Macs, sharpens its flat-panel displays and slashes prices on both.

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