Like Cloud Computing did around 2007, a new phenomenon is underway which is expected to affect us- society, business and human life as much as Cloud computing is doing. The new phenomenon is known as the Internet of Things or briefly abbreviated as IoT. Chances are that you might have already heard about it or read about it. If you are a lucky one, may be you have already using one or more IoT enabled device such as smartphone or fridge. It is also possible that you have come across terms such as smart home wherein a toaster communicates to smoke detector to avert any fire. You might wonder: How are they are connected? and what enables such connection between such heterogeneous devices?
There is no single consensual definition for IoT. It is a phenomenon and can only be realized or recognized through its results. For example consider this scenario: You arr returning from office or a trip and as you nearing your home,
- you may switch on water heater;
- as you approach front door of your home, a remote control built into your key unlocks the door.
- The door's wireless radio messages the network, that prompts the hall light to turn on.
- The house thermostat, that has lowered after you left for outside, returns to comfort level.
All these actions are happening in coordination and concert. So a simple definition of IoT would be " A real Internet of Things is a concert of and coordination among multiple devices"
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