(Seeing in the, leap 13 August), October 7, 1995, the United States made the electronic password Rings.

1995, the U.S. company successfully developed an electronic code ring can be used to open the door, the computer and out of cash in the bank. chip installed inside
Dallas Semiconductor Corporation, according to the British "Daily Telegraph" reported the successful development of this ring can store 64,000 bytes of information. When users need to use it to open the door or open the computer with a password, just the rings you can close the door or on the computer password identification device. Such
electronic password the advantages of the ring is easy to carry.