FUNDAMENTALS OF COMPUTER

TELECOMMUNICATIONS SYSTEMS

NETWORK ARCHITECTURE

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Which one of the following technologies uses inductance to provide power in a device?

A	NFC
B	RFID
C	WiMAX
D	Bluetooth

Explanation:

Detailed explanation-1: -NFC stands for „Near Field Communication“ and has been present on the market since quite a long period. This term designates the contact-free data transmission which makes use of the Radio-frequency identification (RFID-) technology.

Detailed explanation-2: -Near-field communication (NFC) is a short-range wireless connectivity technology that uses magnetic field induction to enable communication between devices when they’re touched together or brought within a few centimeters of each other.

Detailed explanation-3: -In an NFC system, the transceiver is the initiator and produces an RF field to deliver power, send function commands, and enable information exchange. The transponder powers itself from the RF field generated by the transceiver.

Detailed explanation-4: -The NFC tag chip. An NFC tag chip is a passive device: embedded in an antenna, it is powered by the magnetic field generated by the NFC reader (for example, a smartphone).

There is 1 question to complete.