LOOK, MA--NO WIRES!
It used to be that your telephone received signals through a copper line and your television from an antenna. Then came cell phones and cable TV, and that which was wired became wireless, and vice versa. Now the wireless revolution is coming to the Internet, enabling road warriors and home users alike to roam the Web with no strings--or cables--attached. Wi-fi is not perfect--setup is clunky and the range limited--yet it's fast becoming not just a nifty new technology but a way of life. Find out why.
LEARNING OFF-LINE A08 A school in Brooklyn, N.Y., struggles with the...
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