QR codes

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QR codeIn case you’ve been perplexed by those funny little squares that have been appearing all over campus, they are QR codes – short for Quick Response code. Although the look like tiny Rorschach tests, they are actually a scannable code, capable of holding any type of data. They originated in the automative industry and were used to manage inventory, but are now much more widely deployed to enable those armed with smartphones to find more information on a particular product or service by pointing them to a website.

There are more imaginative uses, too. You might have noticed an outbreak of QR codes in the Library, allowing you to quickly report rowdiness in the quiet areas. With a flick of a wrist, you can summon a Librarian to tell them to shhhhh.

If you already have a smartphone, then you’re just a few short steps away from being able to take advantage of this new technology. There are a number of free apps available. For Android, the most popular scanner is by ZXing and there’s a similar product available for the iPhone.

Sadly, as it with the case of any innovation, there are some annoying people who have devoted a lot of time to adapting QR codes for malicious use. Be careful where you point your smartphone, as some codes will direct you to dodgy sites intent on stealing your details. They are in the minority, however, and most will simply help you access information and services quickly and easily.

Should you want to generate your own QR codes, there are many website that will allow you to do this for free, including And if you want to find out more about the technology behind these strange blobs, there’s a very good article on Wikipedia (the QR code above will also take your there).

Do let us know if you come up with any imaginative uses of your own.