The unit receives a video signal from analog cable or a broadcast antenna and rescales the image to be compatible with high-resolution monitors.

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This, in the end, may be the reason Google is letting go (and could also signal that Cisco will soon sell its own TV set top box unit) as Asian competitors may be turning set top boxes into commodities.

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He talks up the importance of a strong unit of account, but refuses to engage in any actions that would signal to the markets he's serious.

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There, a piece of hardware called the concentrator unit plucks the data off a fiber-optic network, reformulates it into a signal at 2 to 30 megahertz and injects that signal onto the power line.

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