Over the past few years, tiny little black and white squares have been popping up everywhere: in stores, on advertisements, on television. These little square blocks are QR codes and are a ways to embed information. QR codes are now being used for product tracking in manufacturing installations, quick URL entry methods for businesses, direction to Facebook and Twitter pages, coupons and sales in stores, digital scavenger hunts, and much more! The beauty of these codes lies in the fact that they are completely unobtrusive but can provide direct, location specific information when requested.
To begin, let us take a look at a tiny bit of history of the QR code. The QR code is a two dimensional barcode. However, instead of only reading in one dimension such as traditional barcodes, it reads in two.