So today I was talking with a man who has family throughout the world. He has four grandchildren in Hong Kong and 3 more in England. He was a very interesting person who was very excite to talk to me about the technology that is used in different parts of the world for everyday life. One thing in particular that I wanted to talked to him about is the use of an Oracle in Hong Kong, which is basically the use of NFC (Near Field Communication) something that smart phone makers are trying to implement in upcoming devices.
Near field communication, or NFC, is a set of short-range wireless technologies, typically requiring a distance of 4 cm or less. NFC operates at 13.56 MHz and at rates ranging from 106 kbit/s to 848 kbit/s. NFC always involves an initiator and a target; the initiator actively generates an RF field that can power a passive target. This enables NFC targets to take very simple form factors such as tags, stickers, key fobs, or cards that do not require batteries. NFC peer-to-peer communication is also possible, where both devices are powered.
He was saying that when he visits Hong Kong, which he is there a few months of the year, that he buys a device called an Oracle. According to him he purchases it from almost any convenient store for $50.00, $100.00 or whatever you really want to put on the card. Then you stick it in your wallet and from there you can use it basically anywhere you need to make a purchase like the transit or even a McDonalds, and when you use the card you see how much money you have left on the card. You don’t even need to take it out of your wallet and just wave it in front of the scanners and it picks up the card immediately. I thought this sounds like a great way to make payments and it would make purchases a lot more easy and fast in many situations, and it would be great to have these capabilities on our cell phones sooner rather than later.
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