RFID (Radio Frequency Identification)

It is kind of small chip which can store data and receive data remotely through a device called RFID Tags.An RFID tag is an object that can be insert in to a person, product or even animal for the identification the person or object by using radio waves.
Most RFID tags contain at least two parts.

• One is an integrated circuit for storing and processing information, a radio frequency signal, and other specialized functions.

• The second is an antenna for receiving and transmitting the signal. chipless RFID allows for discrete identification of tags without an integrated circuit, thereby allowing tags to be printed directly onto assets at a lower cost than traditional tags

Uses of RFID :

There are many uses in today's era of such devices like people use in enterprise supply chain management to improve the efficiency of inventory tracking and management. However, growth and adoption in the enterprise supply chain market is limited because current commercial technology does not link the indoor tracking to the overall end-to-end supply chain visibility

another one is as mention above to identify the people or product through radio waves such as you seen is real or in movie when one comes closer to gate then gate will open automatically..
this is also an real example of it

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