Internet of Things (IOT) - What is actually IOT ?

By now you may heard internet of things(IOT), which sounds interesting but what does the internet of things actually.In this blog post, let me explain the internet of things in very simple way. So once your read this post, easily understand what is IOT and purpose.
        
What is Internet Of Things?
  IOT is simply connecting all the surrounding smart devices(things) to internet.These devices use sensors and actuators to communicate with each their across the internet.

But let us know some basic terms:
1.Smart Device: Any mechanical or electronic device that can intelligent decisions on its own.Look at the below image. Smart device can be any of  the below.

2.Sensor - A small chip that senses the surrounding activities.                                         
3.Actuator -Another small chip that responds to the sensed activities.

How IOT works:

Let's understand with the below simple example:

Suppose you have been wearing a smart watch which will monitor your blood pressure and heart pulse rate level periodically.For instance , unfortunately your BP and Heart pulse going above or below the normal level.In that case , this smart watch will trigger an alarm in the smart device installed in your nearest hospital and hospital analyse the risk if required will send ambulance to your address as soon as possible and save you from biggest risk.

Next post we will see, what is the impact of IOT in automation testing.Thanks for your support. Please comment below if any specific topic required.