1. QR code :
QR code is a way of storing data in the form of two dimensional representation. It is also a form of barcode. Developed in 1994, the QR code is scanned by a QR scanner to get the information it represents. It stores data horizontally as well as vertically.
QR Code that scans to www.geeksforgeeks.org
2. Near Field Communication (NFC) :
NFC is a relatively newer technology developed in 2002. It was developed for communication between two devices using inductive coupling. It offers low speed connection of devices within 4 cm. It is very simple to setup the NFC technology. It is widely used in cashless payouts.
NFC on a speaker
Difference between QR Code and NFC :
|1.||It was developed in 1994.||It was developed in 2002.|
|2.||It was developed by Masahiro Hara.||It was developed by Franz Amtmann and Philippe Mangars.|
|3.||It is only of 1 type.||It is only of 1 type.|
|4.||It is a type of 2D barcode or printed representation of data that can be scanned for data retrieval.||It is a communication protocol for communication between devices (electronic) within a distance of 4cm.|
|5.||It is used in supermarkets, hospitals, cinema or by individuals etc. for transfer of data (sharing contacts, photos, videos and other documents).||It is used as identity cards, as key cards and as a method of contactless payments and mobile payments in various sectors such as retail, automobile, cinema etc.|
|6.||It is based on Morse Code technology.||It is based on inductive coupling between antennas of the devices.|
|7.||It requires line of sight.||It requires proximity (distance between the devices must be less than 4 centimetres, hence the name, Near field).|
|8.||Only one QR code is examined at once.||Only one NFC is examined at once.|
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