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A QR code is a type of two-dimensional barcode that can store data for various purposes, such as tracking, identification, and marketing. Learn how QR codes were invented, how they work, and how they are used in different contexts and standards.
Unified Payments Interface (UPI) is an Indian instant payment system and protocol developed by NPCI in 2016. It facilitates inter-bank transactions on mobile devices using UPI ID or mobile number, and has over 300 million monthly active users and 12.20 billion transactions in January 2024.
Inline linking (also known as hotlinking, piggy-backing, direct linking, offsite image grabs, bandwidth theft, [1] and leeching) is the use of a linked object, often an image, on one site by a web page belonging to a second site. One site is said to have an inline link to the other site where the object is located.
QR code payment is a mobile payment method where payment is performed by scanning a QR code from a mobile app. Learn about the history, usage, and integration of QR code payment systems in different countries and regions.
AIDC stands for automatic identification and data capture, a process of identifying objects and entering data into computer systems without human involvement. Learn about the methods, technologies, applications, and challenges of AIDC from Wikipedia.
Learn about the invention, development and applications of barcodes, a method of representing data in a visual, machine-readable form. Find out how barcodes evolved from linear to 2D, and how they are used in supermarkets, railroads and other industries.
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