What is NFC and how does NFC work?

Have you ever heard about what is NFC? Whenever it comes to online payment, there is definitely a discussion about the NFC. Yes friends, I am talking about the same NFC that is used in systems like Samsung Pay and Android Pay. This feature was often used in high-end devices but it is also available in mid-ranged. Perhaps you have also heard this acronym, but do you know what it is, how it works and where it is used.

Perhaps you have also used NFC because you can see it in almost all new smartphones nowadays. But even after using it, there are very few people who have complete knowledge about it. It may sound a little scary to hear, but in reality it is very easy to understand and it is also a thing of great use. Where earlier it was mehzud in only a few expensive phones, today it has started to be present in almost all smartphones. That's why today I thought that you should be provided complete information about what NFC is, so that you can get information about this technology and you will be able to understand and use it better. So let's start without delay and know what this NFC is and how it works in Smartphones.

What does NFC stand for? The full form of NFC is "Near Field Communication". And as its name suggests, short range communication through it can be between any two compatible devices. RF signals are used for this communication. This communication needs at least one transmitting device to complete, and a receiving device to receive the signal. As we have already known that NFC means Near Field Communication. If its main purpose is seen, then its main purpose is used to interact with the surroundings of your phone.

It operates only up to close to radius 4 cm and provides a wireless connection between your device and each other. This technology allows two-way communication, where in both devices you can send and receive information. This NFC connection does not depend on any technologies like Wi-Fi, 3G, LTE or any other and you do not have to pay any money to use it.

NFC is born of RFID. RFID, or radio-frequency identification, is a technology used in shipping companies, in large warehouses, and in superstores to track goods. It uses electromagnetic induction to transit the information in a short space so that it is known only after scanning a container.

NFC is also a similar technology, but it has been standardized for consumer smartphones. NFC standards have been defined by a group also known as NFC Forum, and it includes big companies like Nokia, Sony and Philips. At the same time, if the feature of NFC is present in your phone, then by using it you can transfer data between phones and NFC readers.

Near Field Communication Technology Overview
NFC has been developed by Sony, Nokia and Philips in which many forum monitors have also been aligned and these are the ones that regulate this NFC Standard. Near field communication always operates only in the low power and low-frequency range.

Frequency: 13.56 MHz
Range: 0 to 10 CM
Specification: ISO / IEC 14443 (which is for smart cards that store information) and ISO / IEC 18000-3 (which is used in RFID tags of smart devices)

Types of NFC
NFCs are mainly of two types.

Active NFC Device
Passive NFC Device
1. Active NFC Device
Active NFC devices are called devices that can also send and receive data and with this they can also communicate with each other whether they are active devices or Passive devices. An active NFC device needs a power source to work. They have the ability to process information. For example, Smartphones are the most common form of an active NFC device. Apart from this, public transport card readers and touch payment terminals are also excellent examples of this technology.

2. Passive NFC Device
Passive NFC devices are called devices which can send information only to other NFC devices. They do not need any external power source for their operation. Apart from this, they also do not have the ability to process information. They also cannot connect with other passive components. For example, they are more used in tags and other small transmitters, which are used as interactive signs in walls or in advertisements.

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