A QR code, quick-response code, [1] is a type of two-dimensional matrix barcode invented in 1994 by Masahiro Hara of Japanese company Denso Wave for labelling automobile parts. [2][3] It features black squares on a white background with fiducial markers, readable by imaging devices like cameras, and processed using Reed–Solomon error correction ...

2021年5月3日 · QR codes are a type of barcode, or scannable pattern, that contain various forms of data, like website links, account information, phone numbers, or even coupons.

2024年9月4日 · A QR code is used to take digital information from a physical medium into a digital device. Using QR codes as a means for money changing hands has seen the largest use to date, next to advertising. How Do QR Codes Work? There’s a long and technical version of this answer and a short version.

2025年1月14日 · QR codes, or quick response codes, are types of 2D barcodes designed to store and share information efficiently. These codes can hold a variety of data types, including text, links, and multimedia files, making them incredibly versatile for …

2021年3月4日 · QR codes store data using patterns of black dots and white spaces arranged in a square grid. These patterns can be scanned and translated into human-readable information, with the help of an imaging device, like a camera or a scanner.

2022年10月25日 · What Is a QR Code? The now-common QR code (short for "Quick Response" code) is a modern adaptation of the typical UPC barcode. It's a machine-readable label that contains data, which a computer or smartphone can interpret faster than plain text or code.

2023年4月21日 · What Is a QR Code? A QR code is a square barcode that can contain information such as a URL, Wi-Fi password, or contact card, and it can be scanned easily by a smartphone camera. You've probably seen QR codes---those black and white boxes with small squares arranged in seemingly random patterns.

2025年1月17日 · A QR Code, short for “Quick Response” code, is a two-dimensional barcode that can store various types of information, such as text, URLs, or contact details. Unlike traditional barcodes, QR Codes can be scanned with a smartphone camera, making it easy for users to access digital content instantly.

2018年9月3日 · Created in 1994 by Toyota subsidiary 'Denso Wave' to quickly track vehicles and parts through the company's automotive manufacturing process, QR codes are used more commonly today for logging...

What is a QR code? A QR code, short for Quick Response Code, is a two-dimensional barcode distinguished by its alignment pattern of black squares on a white background. Unlike one-dimensional barcodes often found on product packaging, QR bar codes store information and data horizontally and vertically, allowing them to hold vast information.