BAR CODE మరియు QR CODE అంటే ఏమిటి...? అవి ఎలా పనిచేస్తాయి...? BARCODE మరియు QRCODE కి మధ్య ఉన్న తేడా ఏమిటి
What is a barcode?
Anyone who buys stuff from
stores must have seen barcodes; however, whether or not they realize it’s a
barcode they are looking at is a different matter altogether!
A barcode is a visual
representation of machine-readable information about the product they are
attached to. To the layman, a barcode is a small box printed on the packaging
of a product and has a small collection of black parallel lines of varying
widths.
This is not just another box that is printed on the cover of the product, but also contains important information such as manufacturer name, article type, price, etc., which can only be read by special barcode readers. Since it consists only of data stored in a horizontal direction, it is also referred to as linear or 1D-1-dimensional.
What is a QR code?
Quick Response Code, often
abbreviated as QR code, is similar to a barcode. In fact, it is a kind of
barcode. Like barcode, it also contains machine-readable information about the
object it is attached to. Unlike a normal barcode, however, a QR code is two-dimensional,
i.e. it contains information in both the vertical and horizontal directions.
QR codes contain a lot of
information. From large companies to the grocery store next door, everyone can
create their own QR code and attach it to their products. For example, the QR
code of the URL of our website reads:
QR codes have grown in popularity over the last decade due to the rise of smartphones. There are certain QR code scanner apps that can be downloaded for free on smartphones. So once you see a QR code, just scan it with your phone’s app, the app usually uses the phone’s main camera to scan the code, and the pre-set action such as opening a web page, sending a tweet, downloading an app etc. that is attached to the code is triggered.
How does a QR code differ from a barcode?
Although both QR codes and barcodes serve the basic purpose of storing information about a particular product or organization, there are some major differences between them.
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