By definition, something that is truly pervasive becomes almost invisible to the end user. That pervasive "something" becomes so widely adopted, so ubiquitous within its environment that it is readily taken for granted and given very little thought. Electricity is an excellent example of a pervasive technology. If you need a light, just flip on the light switch. If you need to plug in your laptop, just look around the room, there will undoubtedly be a few electrical outlets to choose from. Recently, I realized to my surprise, that Radio Frequency Identification (RFID) tags, a category of pervasive computing technologies, have managed to become quite pervasive right under my very nose.

While given my area of expertise, I’ll admit that not realizing the depth of how pervasive the adoption of RFID tags has become is a lapse of observation and study on my part. However, this example also highlights the beauty and promise of pervasive computing. If it’s done right, you don’t even know its there.

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