Today’s world moves largely thanks to different machines which facilitate greatly the realization of a myriad of tasks that were previously very tedious and uncomfortable, but everything is done with the help of certain appliances more easier and faster; a clear example of this, were situations in supermarkets and other establishments, which at the time of pay was lost time while the person in charge wrote down or recorded the price of the product to buy and in certain cases went up to wrong accounts and is paying more than it was, which disappeared thanks to the implementation of barcode readers, which make when paying everything it much more fast to be registered the product’s price in a code and only need to pass in a matter of seconds present in the product barcode reader, besides the price always will be adequate, which makes bar code reader is nowadays indispensable in different establishments in sale of products thanks to its great utility. As the reader can be understood from barcode is a great tool for application in many places that it goes daily, being something already common in society and that looks like something simple, however the functions fulfilled by this device is the result of an excellent technological process, thus persons who feel concerned by the topic and wish to know a little more of what means the barcode readerYou will find in this document basic information about bar code reader. Speaking of code reader barcode, makes reference to a scanner, which through a built-in laser can read bar codes and after processing the image of the code shows the number that represents such a code. Bar code readers are basically presented in 2 forms, the most common, it is fixed, which occurs mainly in supermarkets boxes and the other is the handheld scanner. The barcode readers work through different types of connections, among which are by USB, by port of series, WiFi, bluetooth and is also possible via an adapter that is integrated into the keyboard. The basic components that come with a barcode reader, are the scanner, a decoder and a medium that I acted as the interface between the decoder and the receiver of information, which in the case of the reader are the different types of connections. Scanner barcode, in its action, reader reads the entire image that offers barcode, i.e.
different bars and the blank spaces and then provides a result or information electrical output to computer or receiver. But mainly the environment that recognizes the code symbol is the decoder, the simplemnte scanner receives the image, while the decoder analyzes the symbology and transmits the information in the traditional way, i.e. in numbers. Original author and source of the article