What is the NFC chip? How does it work?

What is the NFC chip? How does it work?

The NFC chip is a passive communication device, i.e. we can access it with an active element (such as a mobile phone) to read information from it. This information can be of anything: a website link, contact information, a map location, etc. It is simple: you put the smartphone near the area where the NFC is located (the effective area varies between 1 and 5cm) and it acts automatically according to the link that it has recorded. The operation is based on the type of smartphone we use: in devices before 2018 equipped with NFC communication, we must have an application to read the information from the device. For devices manufactured after 2018, there is no need to install an app, as the device reads data from an NFC automatically from the operating system itself.
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