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QR-code
A QR code (an initialism for quick response code) is a type of matrix barcode (or two-dimensional barcode) invented in 1994 by the Japanese company Denso Wave. A barcode is a machine-readable optical label that can contain information about the item to which it is attached. In practice, QR codes often contain data for a locator, identifier, or tracker that points to a website or application. QR codes use four standardized encoding modes (numeric, alphanumeric, byte/binary, and kanji) to store data efficiently; extensions may also be used. The quick response system became popular outside the automotive industry due to its fast readability and greater storage capacity compared to standard UPC barcodes. Applications include product tracking, item identification, time tracking, document management, and general marketing. A QR code consists of black squares arranged in a square grid on a white background, including some fiducial markers, which can be read by an imaging device s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
QR Code For Mobile English Wikipedia
QR may refer to: Arts and entertainment * Nippon Cultural Broadcasting (from call sign JOQR), a Tokyo radio station * Queen's Radio, a student radio station at Queen's University Belfast * Quiet Riot, an American rock band Businesses * Qatar Airways (IATA code) * Queensland Rail, a company responsible for the railway system in Queensland, Australia * Quintana Roo (company), a triathlon-specific wetsuit and bicycle company Places * Quintana Roo, a state of Mexico * Karakalpakstan (Qoraqalpog'iston Respublikasi), Uzbekistan (ISO 3166-2 subcode UZ-QR) Science and technology * QR code (Quick Response code), a two-dimensional code * ATCvet code QR ''Respiratory system'', a section of the Anatomical Therapeutic Chemical Classification System for veterinary medicinal products * DICOM Q/R, DICOM Query / Retrieve * Nissan QR engine Mathematics * QR decomposition, a decomposition of a matrix * QR algorithm, an eigenvalue algorithm using QR decomposition * Quadratic reciprocity, a t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
