Today is the most suitable day to remember some interesting stories about barcodes.
Funny Fact 1: In Seattle, QR codes are inscribed on graves which contain a link to the detailed information about the deceased person
Funny Fact 2: The first patent for bar code was issued to inventors Joseph Woodland and Bernard Silver on October 7 of 1952.
Funny Fact 3: Wrigley’s Gum was the first product to have a barcode included in June of 1974, at a Marsh’s supermarket in Troy, Ohio. There was installed the 1st UPC scanner too.
Funny Fact 4. Some religions believe that the global use of barcodes is an indication that we are living in the ‘last days’, as they all contain the number 666 in them (either the number set or the control sum).
Funny Fact 5. Maths and barcodes are together. Check any product with the EAN8 barcode, doesn’t the retailer make a mistake in it?
The check digit is chosen (we are checking EAN8 barcodes now) so that
3 x (1st + 3rd + 5th+ 7th number) + (2nd + 4th + 6th + 8th number)
is exactly divisble by 10.
Right barcode? Congratulations! Both you and the retailer are very good at maths!
“I know they aren’t technically gadgets, but I felt this was the most relevant place. Anyway, QR codes, in my opinion, are pretty fantastic, but the general opinion is negative and caused the whole thing to flop”.
Like any other barcode, using a QR code isn’t that complicated if you have the right QR reader. What you do is scan the code with an image sensor to access its content. A notification pops up with details that connect to a given type of information. You can use a smartphone’s camera app to convert code to binary. Once that is done, the encoded information is displayed. You may also complete a given action preprogrammed into the code.
Importantly, QR codes have made it easier for people to hyperlink real-world activities to the code. If you are not into QR codes, go for any of the numerous QR code apps that help you the read the encrypted code.
Figure out if your device supports QR code reading by simply going to the phone or tablet Camera app. Open and steadily point the camera towards the QR code you intend to read. If QR scanning is enabled on your device, you will get a notification regarding the code. But if no such thing happens, first confirm by going to your Settings to enable QR code reading. If by chance your device doesn’t have a native QR reader, proceed to download a third-party app.
Interesting Fact: A QR code configured with the highest level of error correction can function even when part of the code is damaged.