Companies are using QR codes
to draw attention to their companies in a convenient and quicker way to provide
people with something valuable and that they are interested in a more timely
fashion. Companies uses the codes for advertising product, selling product, to
invite people to their websites or sign up for email newsletters and even to
find them online through Facebook or Twitter. Companies are posting videos and
providing customers with ways to leave feedback. QR codes are input and output
devices because you have to put information into the code when creating it and
a person has to take information out of the code to get the information that is
provided in the code. The benefits of a QR code is the convenience, effective
and affordable ways of using it and the things that it links you too. The
downside of QR codes would mostly be the technological downfalls. If a person
does not have a phone that is compatible with a scanner, they will not be able
to use a code. If a person wants to use a code in a tunnel, it would be a
matter of not having enough time or connection to use the code. If the code is
not provided correctly, people may not be able to scan the code.
