Radio Frequency Identification (RFID) Essay -- microchip radio waves i

Radio Frequency Identification (RFID)Radio frequence identification, or RFID, is a generic term for technologies that use radio waves to mechanically light upon people or objects. There are several methods of identification, plainly the most common is to store a serial number that identifies a person or object, and perhaps other information, on a scrap that is attached to an antenna (the chip and the antenna together are called an RFID transponder or an RFID tag). The antenna enables the chip to transmit the identification information to a endorser. The reader converts the radio waves reflected back from the RFID tag into digital information that can thus be passed on to computers that can make use of it.RFID is a meliorate technology than turf out laws in many ways. The both are varied technologies and ca-ca different applications, which sometimes overlap. The big difference between the two is bar codes are line-of-sight technology. That is, a scanner has to see the bar code to read it, which means people usually have to orient the bar code towards a scanner for it to be read. Radio frequency identification, by contrast, doesnt require line of sight. RFID tags can be read as pertinacious as they are within range of a reader. Bar codes have other shortcomings as well. If a label is ripped, soiled or waterfall off, there is no way to scan the item. And standard bar codes identify only the manufacturer and product, not the unique item. The bar code on one milk carton is the same as ever...