You have seen the QR code and bar codes being used in many places. These are on any of your parcels, on any book, See which soft drinks are on top of the bottle or on your T-shirt. Bar codes are usually more common and can be seen in many long lines. Moreover, today's smartphone users know about the QR code. To download various apps, you must use this code to visit any site online. How to hide any information about this dark long line and black colored houses And how can your scanner or smartphone read them, so let's discuss in detail today.
Barcode
Friends, there is no information stored inside the long black square in barcode and it is possible to preserve a small amount of information here. But after saving any information, it is possible to read that information much easily, you can manually You do not need to enter a number or code, you can access all the information just by scanning the code. If you own a store, barcodes will help you manage your product. Suppose you have 15 types of items in your shop, and everyone has a different type of barcode. Now, when a product is sold, your shopkeeper scans the code and can easily buy the product price,the product will be able to know more about how much stock, how much it has been sold, etc. As a subscriber you also scanned the code for that product, so many information for example, know about the name of the manufacturer's product, the date the product was created etc.
QR code
On any product, on tickets, on any newspaper advertisement, or on any online website Of course, QR code has been seen to be used. This code contains many dot dots and the complete code a square is located in the house. It is also possible to read with a scanner like a normal barcode, So, it is easily possible to fetch stored data from this. QR code is also called Dynamic Barcode or 2nd barcode. The data is hidden in the normal barcode, but in the QR code it is dark and it is possible to keep a lot of data together in many dot dots.
How does the QR code contain any information?
Normal QR code and all code of this type are prepared to be read by the machine, not to be read by humans. So these codes have a specific feature through which they store information.
Image source : Google Image