In the future, a $1 ring with a Java chip inside will open doors or even find a Web page, according to Sun Microsystems' chief executive Scott McNealy.
McNealy, showing off the prototype at the site of a planned new corporate building in Massachusetts, said the chip inside the ring costs roughly $1 and works in the same way as a smartcard, at ranges up to 10 inches.
"You can reach for your car door and open it or put it on the steering wheel and the car will start," he said, claiming Java is the more futuristic alternative to Microsoft Windows for any client device.
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