The QR Code QR code, short for Quick Response code, is a two-dimensional barcode that was first developed in 1994 by a Japanese company called Denso Wave, a subsidiary of Toyota. QR codes are designed to store information, such as text, URLs, contact information, or other data, in a pattern of black squares arranged on a white background. They can be scanned and read using a smartphone or a QR code reader, allowing users to quickly access the encoded information. QR Code Key Characteristics of QR Codes: 1. Data Capacity: QR codes can store a significant amount of data compared to traditional one-dimensional barcodes. Their capacity ranges from a few dozen characters to several thousand characters, depending on the type and size of the QR code. 2. Encoding: QR codes encode data using patterns of black squares (modules) arranged in a square grid. The arrangement of these squares represents the encoded information. 3. Error Correction: QR codes include error correction capa...
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