Barcode is optical. Takes a laser "reader" to be passed over the printed bar code. The reader has to be right next to the code to read it. By the nature of the design, both the barcode printing and the reader to read it HAVE to be visible.
RFID is electronic. RFID patches can be hidden on or in all sorts of things. The readers can also be hidden. They can be several to many feet away, depending on the sensitivity of the reader. While RFID does have some inventory tracking uses, the big use of RFID is so that "Big Brother" -- corporate or government -- can track YOU, by what you are carrying, what you are buying, what you are discarding. The ideal is to have an RFID chip embedded in YOU.
Scenario: You buy something with an RFID chip. The store scans it and ties its code to your credit card or the RFID code in the currency you paid for it with. Later, you happen to dispose of the item in an "environmentally inappropriate" manner. (You throw the worn-out batteries into the trash instead of making a special trip to a recycling center.) The garbage truck RFID reader pings everything it picks up and sees that a forbidden object is in the trash, and its RFID code points to you. In a little while, there is a knock at your door, "Citizen, your papers (ID) please..."
Rent the Tom Cruise movie "Minority Report" to see what your rulers have in store for you with RFID tracking technology.
by ragavenkatesan 9 years ago
Whats Diff between Barcode and Rfid
by ChapmanHester 8 years ago
The way of the future is here today! Watch out because "Big Brother" is Watching... Todays scientific breakthroughs are tomorrows useful techniques in providing valuable information not only to the government but to private agencies, and even internet hackers bent on destroying your...
by em_saenz 4 years ago
How do RFID chips work?how do they track your dog and cat?
by Mubin123 9 years ago
My adsense impressions are fine, my analytics impressions are fine.The problem is that my adsense impressions are not showing up in my analytics account so I have no idea which pages generate which revenue.any idea on what to do?
by sandra rinck 9 years ago
Anyone else see the bar code in place of the google logo? Anyone else been signed out every time you leave the page? Just curious.
by L C David 4 years ago
I have followed instructions on both HP and GA itself but when I get to the place where the upgrade should be, it's not there.I see what it is supposed to look like. Just can't figure out why my option to upgrade isn't there. Anyone that has insight is welcome to give me some pointers.
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