Figure 1
http://www.fouga.net/ - WWII Transponder Box
The system typically implemented for RFID consists of three main components: tags, readers, and middleware (i.e. Servers and software)63. Tags can be powered by a battery or can receive their energy from the reader. They can also be really small or quite big. Readers come in many different flavors as well. Most readers are connected to a main database which contains further information about the item associated with the tag. Together, these components create a robust and quite remarkable system which is only now starting to be realized in its finest potential.
By January 2005, the United States Department of Defense and super-retailer Wal-Mart would like their suppliers to embed RFID technology into all products shipped to them64. Many sources claim that it is unlikely RFID technology will actually make it into every item on the shelves of Wal-Mart by the January date, however, the request by these big two product-movers sets a tone for widespread implementation of this technology.
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