Unlicensed National Information Infrastructure (U-NII) devices today operate in 555 megahertz of spectrum in the 5 GHz band, and are used for short range, high speed wireless connections including Wi-Fi enabled local area networks and fixed outdoor broadband transceivers used by wireless Internet service providers to connect smart phones, tablets and laptops to the broadband network.

ENGADGET: FCC proposal hopes to grow WiFi spectrum by 35 percent, reduce hotspot congestion

There is, perhaps, no need to explain what happened next: Until the advent of the Internet, no journalist needed to know how a high-speed printing press worked because its functions and capacities were known and fixed.

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