Radio-frequency Identification Chips

Summary
RFID – it is an abreviation of radio-frequency identification chip. The source text introduces the reader with this new technology called RFID. The technology is cheap enough to replace the existing barcode identification technology. This technology is used in product tagging in stores , pet identification, ID card and toll pay systems. Nowadays it is also wide used in human identification. The system consists of a receiver and a transmitter . The transmitter is a computer with a database and the receiver can be a sticker that can be attached to a product in store . It also can be a small chip in size of a rice grain or smaller that almost cannot be seen by an unarmed eye. It is a small computer that has no internal power source, it receives the power from induction. RFID can store the basic data and there are also chips with bigger amount of memory so it is able to store even pictures. In past these chip were used to identify animals and pets. Now in some countries the idea of human-implanted chips spreads rapidly. So in a very close future it will be able to store not only personal identification data , but also passwords for bank accounts, use chi as a door key for houses or vehicles and to use the chip as a credit card or for medical purposes. Similar chips can be used for in medicine. The implant warns cellphone other system when the patient has a heart attack or if the health fets unstable and calls for a doctor. The negative aspects of RFID are loss of identity, low level of security, high count of people that have allergy, chances of getting cancer. The researches are still in progress.

Introduction to RFID
Radio-frequency identification chips (often called RFID tags) are passive, inductively powered chips that are used for many applications, from replacing bar codes on supermarket products to identifying lost dogs and cats. Their small size and low cost makes them ideal for tracking objects, animals and people. However, the ease with which RFID tags can be tracked opens the door to invading people's privacy.
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