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QR codes (Quick Response
Codes) were invented in Japan in 1992,
and it took three years to develop a new
type of encoding that holds more data
than traditional barcodes, can be read
360 degrees, records both numbers and
letters, and can be read even if the
surface is damaged up to 30%, such as
torn or stained.
The development team has
made the innovative QR code available to
the public so that it can be used
without the need for royalty payments.
The advancement continued and marked a
watershed moment in the development of
new information-reading technology.
There are currently 40 QR Code
variations.
The first QR Code version could
store over 7,000 characters in multiple
languages and is still being developed
in every version. Because of the
convenience and availability of a
reader, that is, a mobile phone with a
camera, which is already widely used by
the general public, it is currently
being used in many
categories.
Story and illustrations: Ratchanok Thongkhaokham