To exactly understand this simple piece of technology used in our day to day life, we need to first know in and out about the bar code and how it was created. Bar code is a language, the barcode scanner reads and then interprets or deciphers in the language in you and I can understand.
Each bar code has specific symbol, which equivocate in to series of bars. These bars are of short or long, where you will be able to find different spacing between each and every bar. Each part that is each bar denotes some number or character depending upon the information or data which was input into the bar code software.
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Bar code software is the mother of everything, be it the bar codes or their scanners. This bar code POS softwareenables the programmer to feed in the name of the product in their inventory and assign it to a computer generated bar code. Al these are nothing but sophisticated data base system, where all the data of each and every product is stored. This not only makes the inventory tracking simple and easy, but also allows us to update the product in the store and the bar code scanner interprets the current information in the data base.
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The photo sensors are the ones which can actually read and interpret the bar code perfectly. These tiny lasers work together and do wonders for us. Yes, what exactly they do is , the recognize the spacing, length of different bars, alignment etc and try to match them up to their corresponding details found in the data base. All this point of sale systems work together and forms an amazing technology.
So the next time when you're in a queue in the super market to get your stuff's billed , remember how these tiny pieces of technology work together in agreement and provide us with a better and faster way to get out of the store just a couple of minutes sooner.
