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Archive for December 1st, 2010


Posted from Diigo. The rest of my favorite links are here.

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QR Codes (Quick Response Codes) are similar to bar codes. Bar codes use only one dimension (vertical stripes on one horizontal axis) that can be decoded to represent information. QR codes has a two dimensional matrix (both vertical and horizontal axes) with equal length. QR codes can store more information than a simple bar code.  They can store plain text, web addresses, raw data, or contact information. QR codes are readable by a QR reader, a camera smartphone, or a laptop with Webcam. When a QR code is scanned by a camera smartphone, it displays text or an image, accesses a webpage, plays a movie or an audio file, sets up an SMS or email to be sent to a user, provides contact details to be added to the phone’s address book, displays a Google map, or links to social media sites such as Facebook and LinkedIn.

Although QR Codes are ubiquitous in Japan since they were developed in 1994, it is not until  recently that the rest of the world is catching up. Today, mobile computing becomes popular. we can find QR Codes appear in magazines, on signs and posters, receipts, TV commercials, billboards, buses, business cards, store windows, buildings, or on just about any object about which users might need information.  QR codes can be applied in m-commerce applications: buy drinks from a vending machine, order game or concert tickets, pay the parking fee, download MP3 songs, track your package, and even make reservations.

QR Code’s CSI Moment

QR Code in Japan

QR Code Video – Mobile Marketing for Business

Creating a single QR code is quite simple. There are many free QR code generators available on the Web.  My favorite QR code generator is the Kaywa QR Code Generator because it is free and is very easy to use.  The Kaywa QR Code Generator allows four different content types: a URL, text, phone number, or SMS.  Also, you can create a QR code in one of the four sizes: small, medium, large, or extra-large.

In order to read QR Codes, you need to download a QR reader/scanner for your camera smartphone.  My favorite QR reader/scanner is the Quickmark Code Reader.   Quickmark Code Reader is free and is available for PC as well as many smartphones including Android phones and iPhones.

QR Codes are a low-threshold technology.  I think QR technology has a great potential in education because it is low-cost, easy to implement, and easy to use.  I came across several presentations about the use of QR Codes in education.   These presentations offer many great ideas of using QR Codes in education.

QR Codes in Education by David Muir

http://prezi.com/ma3afb24peyh/qr-codes-in-education/ target=”new”

QR Codes in Education

QR Codes in Libraries

Finally, I have created numerous QR Codes for various applications.  Here are few of them.  Please feel free to try these QR Codes out.

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