Radio
Frequency Identification is the wireless non-contact use of radio-frequency
electromagnetic field to transfer data to automatically identify and track tags
attached to objects. The tags contain electronically stored information that could
be used to identify an object. The implications of RFID are seen in
pharmaceutical companies and in Livestock pets who could be correctly
identified using the electromagnetic chip in them.
As every coin has two sides, there are some disadvantages to
this technology. One of them is the capacity of a stranger to access embedded
personal information. There are two types of RFID tags: active and passive
battery assisted. Active tags are always on while the passive tags uses radio
energy transmitted by the reader as its energy source.
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