Hi, I wanted to ask about the technology that is used in the Sodexho pass vouchers as in the barcodes … etc?

Hi, I wanted to ask about the technology that is used in the Sodexho pass vouchers as in the barcodes … etc?
I would like to know about what are the security features built into the card , what is special in those barcodes and how do they regenerate the barcodes

Best answer:

A barcode (also bar code) is a machine-readable (uses dark ink on white substrate to create high and low reflectance which is converted to 1′s and 0′s) representation of information in a visual format on a surface. Originally barcodes stored data in the widths and spacings of printed parallel lines, but today they also come in patterns of dots, concentric circles, and hidden within images. Barcodes can be read by optical scanners called barcode readers or scanned from an image by special software. Barcodes are widely used to implement Auto ID Data Capture (AIDC) systems that improve the speed and accuracy of computer data entry.

Practically every item purchased from a grocery store, department store, and mass merchandiser has a barcode on it. This greatly helps in keeping track of the large number of items in a store and also reduces instances of shoplifting (since shoplifters could no longer easily switch price tags from a lower-cost item to a higher-priced one). Since the adoption of barcodes, both consumers and retailers have profited from the savings generated.

The best-known and most widespread use of barcodes has been on consumer products. The Universal Product Code, or UPC., is unique because it was developed by the user community. Many technological innovations are first invented and then a need is found for the invention. The UPC is a response to a business need first identified by the US grocery industry in the early 1970s.

As far as the security feature is related it does not provide any security feature except for that it gives a unique ID to each item.

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