Barcodes have become one of the best mechanisms for inventory control ever invented, They are used at major chain stores all around the country to track their products with complete focus. They are even used by you and I for wedding gift registries and baby showers. Barcodes have become a part of everyday life.
Because they are so common, barcodes and their scanners rarely receive a second thought on how they work or why. It is rare to ponder as to how simply dragging an item across the checkout scanner can suddenly make it register with a price and name, identical to the label.
How does a barcode scanner work anyway? To really understand how this simple piece of everyday life works, we have to first explore the barcode itself and how it was created. The barcode itself is the language the barcode scanner reads and then deciphers into a language you and I can understand.
Barcodes each have specific symbols, which equivocate to a series of bars. The bars are comprised of long and short bars, as well as different spacing in between the bars themselves. Each part in this series denotes a number or character dependent upon what data was input into the barcode software.
Barcode software is the starting point for all barcodes and their scanners. Barcode software allows the programmer to input the name of a product in their inventory and assign it a computer generated bar code. All of this is completed using a sophisticated data basing system, where all of the data on each product is stored. This not only makes inventory tracking simple, but it also allows for expedient updating of pricing information, as the barcode scanner will decipher the current information in the database.
The photo sensors in the barcode scanner are what can actually read and then decipher the barcode itself.
These tiny lasers all working together, recognize the spacing, alignment and length of the different bars and then match them up to their corresponding information found in the database. All of these components working together allow for this amazing technology.
So the next time you are at the checkout line, remember how these little pieces of technology work together, and provide us with a better faster way to get out of the store just a few moments sooner. This rarely thought of convenience really does make a big difference.