The QR code system was invented in 1994 by Toyota's
subsidiary, Denso Wave. QR codes were initially used by automotive industry in
Japan. QR codes consist of four types of data (numeric, alphanumeric, binary,
Kanji).
Why and how QR codes are useful:
You don’t have to own a business to use QR codes. They are
free and anybody can own it. They are used to keep track of your things. For example, they are used in libraries to
track books, CDs and DVDs. Even personal information can be stored in QR codes.
However they are used to track and store information, they
are mainly used by companies, banks and institutions for promoting them and
their products.
QR codes vs. Barcodes:
The QR code and barcode are examples of information matrix.
However a significant difference in the two is that while a barcode only holds
information nicely in the horizontal direction, a QR can do so vertically as
well. This is why QR codes are referred to as two-dimensional, because they
carry information both vertically and horizontally. Another direct result to
this is greater potential to carry information in a smaller space. Compared to
a barcode, it’s no competition at all.
Therefore we conclude that QR codes are more advantageous
than barcodes.
Theme of the blog is Impressive and QR code of the blog is eye catching. One thing is author should explain what QR code is first so readers can have an idea about what is post about, also it is worth to mention QR stand for Quick Response. Overall content is good. There is nice comparison between QR code and bar code.
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