The Evolution of RFID

As many inventions this one has been in use by the military before being used in a public sphere. According to some sources the military has used a primitive version of this technology since the 1920’s. At its earlier stage, it was merely transmitting radio waves with audio information. Leon Theremin has been attributed with inventing the device as the predecessor of the RFID technology even if his invention is not truly an ID tag. Other similar technology was used in WWII to identify airplanes as friend or foe. The RFID will also replace conventional ID cards and electronic access cards, and even your PIN number at the ATM.

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