Radio Frequency Identification:
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RFID is a type of passive wireless technology that allows for tracking or matching of an item or individual.
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The system has two basic parts:
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Tags
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Readers.
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The reader gives off radio waves and gets signals back from the RFID tag, while the tag uses radio waves to communicate its identity and other information.
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A tag can be read from up to several feet away and does not need to be within the direct line-of-sight of the reader to be tracked.
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The technology has been approved since before the 1970s but has become much more prevalent in recent years due to its usages in things like global supply chain management and pet microchipping.
