OPaul Posted January 14, 2003 Share Posted January 14, 2003 I'm not talking about having a microchip surgically implanted beneath your skin, which is what Applied Digital Systems of Palm Beach, Fla., would like to do. Nor am I talking about John Poindexter's creepy Total Information Awareness spy-veillance system, which I wrote about last week. Instead, in the future, we could be tracked because we'll be wearing, eating and carrying objects that are carefully designed to do so. The generic name for this technology is RFID, which stands for radio frequency identification. RFID tags are miniscule microchips, which already have shrunk to half the size of a grain of sand. They listen for a radio query and respond by transmitting their unique ID code. Most RFID tags have no batteries: They use the power from the initial radio signal to transmit their response. You should become familiar with RFID technology because you'll be hearing much more about it soon. Retailers adore the concept, and CNET News.com's own Alorie Gilbert wrote last week about how Wal-Mart and the U.K.-based grocery chain Tesco are starting to install "smart shelves" with networked RFID readers. In what will become the largest test of the technology, consumer goods giant Gillette recently said it would purchase 500 million RFID tags from Alien Technology of Morgan Hill, Calif. Alien Technology won't reveal how it charges for each tag, but industry estimates hover around 25 cents. The company does predict that in quantities of 1 billion, RFID tags will approach 10 cents each, and in lots of 10 billion, the industry's holy grail of 5 cents a tag. Continue Source: CNet News Link to comment Share on other sites More sharing options...
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