(A)
1. It's an application of RFID. RFID is Radio-frequency identification
2. NFC tags explained
3.Wireless technology that can send data such as text or numbers.
4. NFC means, Near Field Communication
5. They have 137 bytes of usable memory.
(B)
What is good about NFC cards?
You can do lots of stuff with the tags
(C)
What is one potential weakness of NFC tags?
Range is just a few centimetres.
People could steal it.
Can be hacked.
Commands
Sets alarms
transfers data
works on android and blackberry
paying for stuff
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