Engineer-scientist George Laurer died in Wendell, North Carolina, at age 94. Together with Norman Joseph Woodland, he was the co-developer of the Universal Product Code (UPC), or barcode, in 1973.
About:
A barcode is a method of representing data in a visual, machine-readable form.
Initially, barcodes represented data by varying the widths and spacings of parallel lines. These one-dimensional (1D) barcodes can be scanned by special optical scanners, called barcode readers.
Later, two-dimensional (2D) variants were developed, using rectangles, dots, hexagons and other geometric patterns, called matrix codes or 2D barcodes. 2D barcodes can be read using application software on mobile devices with inbuilt cameras, such as smartphones.
Benefits: Barcodes can be found in hundreds and thousands of products for identification and scanning, and allow retailers to identify prices instantly. They also allow for easy check-outs and fewer pricing errors, and let retailers keep better account of their inventory.
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