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Theoretically, anyone with a smart phone, a laptop, an Internet connection and a browser can read them and the information contained can be interpreted by their respective smart phones or computers. The code into a form that the receiver of the code can understand. They are decoded using an algorithm that scrambles

So, what exactly are these QR Codes? They're a series of alphanumeric characters which are encrypted in a way that only they can decipher (hence the name). This makes it a unique kind of code that stands out from traditional barcodes and can be used in conjunction with special smart phones to give access to content or services. A magnetic code is simply a machine-readable pattern that contains pertinent information about an object to which it's attached. Magnetic barcode first developed in Japan for the car industry in 1994.
