Week 6 Reflection: Internet of Things

According to the readings, the Internet of Things is about the coming future when there are more "things" on the Internet (sensors especially) than there are people.  I learned that Radio-frequency identification (RFID) is a technology that uses communication through the use of radio waves to exchange data between a reader and an electronic tag attached to an object, for the purpose of identification and tracking.  Meanwhile, the QR code (short for Quick Response) is a specific matrix barcode (or two-dimensional code), readable by dedicated QR barcode readers and camera phones.   QR code has a lot to do with the Internet of Things.  For example, when you scan or read a QR code with an iPhone, Android or other camera-enabled Smartphone, you can link to digital content on the web; activate a number of phone functions including email, IM and SMS; and connect the mobile device to a web browser.  The ability of QR codes to connect people with each other and to multimedia digital content is very useful for both businesses and consumers.