What does NFC stand for?
Near-Field Communication
NFC is a short-range wireless technology (≤4 cm) used for data transfer or authentication between devices without cables
What is the typical range of NFC?
4cm or less
NFC works only at very close distances, making it secure for contactless payments and authentication
Name common devices that use NFC
Smartphones, smartwatches, and laptops with NFC readers
NFC is widely used in mobile devices for payments, authentication, and small data transfers
How is NFC used for authentication?
Allows login or access without typing a password
NFC tags or cards communicate with a reader to grant access, common in hospitals, warehouses, and manufacturing environments
How is NFC different from Bluetooth or Wi-Fi?
NFC = very short range, low power, quick authentication.
Unlike Bluetooth or Wi-Fi, NFC requires very close proximity, doesn’t need pairing, and is often used for secure contactless operations
