NFC transceivers are now being built into many mobile devices including the iPhone and iWatch, and the technology underlies touchless payment systems like Apple Pay and Android Pay. The two devices communicate using a weak magnetic field that, in theory, only has a range of a few centimeters, so both devices have to be physically close, and someone standing nearby can’t intercept or alter the signal. NFC is a standard that allows two devices to exchange information over a short distance without being in physical contact. What just happened? You used Near Field Communications (NFC) to send data between your phone and the credit card terminal. The cashier nods, and you walk out, stuffing gum into your face. You casually pull out your cell phone and wave it near the credit card machine, which beeps appreciatively. The cashier rings up the purchase, showing you the amount.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |