Except for low-end models, we live in a world where a phone isn't a phone without a built-in camera. Companies, take note, as there at least three programs that can turn mobiles into barcode readers.

QR Codes and Semacodes are similar in the sense that they're squarish. ShotCodes, appropriately enough, mimic a bulls-eye. Unlike normal barcodes, these two-dimensional "matrix codes" can store much more data, aside from simple numbers.

Currently companies use all three forms as an easy way to provide links on posters, magazines, advertisements, etc. It's a lot easier to get a URL by taking a snapshot of the code, rather than input a long URL with the keypad. For example, the QR Code on the upper left of this post actually means:

"http://www.google.com.ph/search?num=100&hs=qpR&hl=en &safe=off&client=firefox-a&rls=org.mozilla%3Aen-US%3A official&q=The+Smart+PDA+aims+to+make+sense+of+the+virtually+ limitless+information+on+Smartphones+and+PDAs+today%3B+providing+ only+what+is+useful+and+interesting+for+you.&btnG=Search& meta="

Imagine having to type that in!

This technology is useful for both companies and their customers, as it helps extend the easy flow of information on the net to traditional forms of media. Here are some useful links to get you started:

QR Codes

• Official Website
• Code Generator
• Reader Download

Semacodes

• Website
• Code Generators for PC and Mac OS X
• List of Supported Devices

ShotCodes

• Website (You need to access the code generator from here for it to work)
• List of Supported Devices

Remember that for the codes to be properly interpreted by the camera, the corresponding program must be installed.

Distinguished History: QR Codes were originally invented to keep track of vehicle parts.