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2. QR code - Wikipedia

   en.wikipedia.org/wiki/QR_code

   The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; the pattern of position detection was found and determined by applying the least-used ratio (1:1:3:1:1) in black ...

3. Basic Element (band) - Wikipedia

   en.wikipedia.org/wiki/Basic_Element_(band)

   Basic Element is a Swedish Eurodance hip-hop group formed in 1992. The group returned in 2005 and is still releasing new material. The group returned in 2005 and is still releasing new material. From Malmö in Sweden, the group originally consisted of rapper /singer Peter Thelenius (Petrus), and keyboardist Cesar Zamini, accordion and vocalist ...

4. Reed–Solomon error correction - Wikipedia

   en.wikipedia.org/wiki/Reed–Solomon_error...

   The first element of a CIRC decoder is a relatively weak inner (32,28) Reed–Solomon code, shortened from a (255,251) code with 8-bit symbols. This code can correct up to 2 byte errors per 32-byte block. More importantly, it flags as erasures any uncorrectable blocks, i.e., blocks with more than 2 byte errors.

5. Barcode - Wikipedia

   en.wikipedia.org/wiki/Barcode

   Barcode. A UPC-A barcode. A barcode or bar code is a method of representing data in a visual, machine-readable form. Initially, barcodes represented data by varying the widths, spacings and sizes of parallel lines. These barcodes, now commonly referred to as linear or one-dimensional (1D), can be scanned by special optical scanners, called ...

6. Blockchain - Wikipedia

   en.wikipedia.org/wiki/Blockchain

   In another project, the company uses blockchain technology to track the emissions of climate-relevant gases and the amount of secondary material along the supply chain for its battery cell manufacturers. Domain names. There are several different efforts to offer domain name services via the blockchain. These domain names can be controlled by ...

7. Data Matrix - Wikipedia

   en.wikipedia.org/wiki/Data_Matrix

   A Data Matrix is a two-dimensional code consisting of black and white "cells" or dots arranged in either a square or rectangular pattern, also known as a matrix. The information to be encoded can be text or numeric data. Usual data size is from a few bytes up to 1556 bytes. The length of the encoded data depends on the number of cells in the ...