English translation: machine reading bar codes from goods
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Explanation: When you shop, each item has a bar code: little label with lines and numbers, containing information about the product and price. At the cashier there is a bar code reader, which reads the information.
—any device that can convert a bar code image into data. Common bar code readers consist of pistol-type scanners, wand scanners, and fixed position scanners.
An input device that interprets bar codes such as the universal product code (UPC) found on supermarket items and inputs the data as digitized information to a computer. www.indstate.edu/cape/glossary.html
A bar code reader measures the intensity of a light beam reflected from a printed bar code to identify the digits making up a unique identification number. The digits making up the identification number are also printed at the foot of the bar code. If a label containing a bar code becomes damaged or cannot be read for some other reason, it may still be possible to enter the identification number manually.
A device used to read data encoded in a bar code by detecting the width of the bars, eg super market check-outs use a reader to scan packaging. The till is then told what the product is and the supermarkets computer will know its price. The advantage to the shopper is; It should make shopping quicker, less mistakes at the till, itemised bills so you can check what you bought. The advantage to the shop is that they don’t have to mark every single item with a price, the shops computer can keep track of stock so you know when you are running out of an item, less mistakes (accidental or deliberate) by the person on the till www.schools.sandwell.net/warley/itgloss1.html
Saleh Chowdhury, Ph.D. Bangladesh Local time: 11:01 Works in field Native speaker of: Bengali PRO pts in category: 4