IoT

Raspberry Pi  :
                          It's a device of  size of  VISA card with some extension with GPIO pins along the boundary.Its acts as a server(Stand alone Pc's) or say Desktop pc,that can perform many activities like glowing the LED to Opening the doors automatically.

Raspberry works with "Raspbian OS"  which needs to be installed in the Storage device connected to Pendrive or memory card inserted in to the Pi.Your pi can excellently work with Python language.

Raspberry pi can be obtained from certain sites online,it has divisions of models :
-Raspberry Pi
-Raspberry Pi 2
-Raspberry Pi 3...
 with model B,B+ etc

                                                                    Fig 1.0 ( Pi 3 )


Details about raspberry pi :

> https://www.raspberrypi.org

Download Raspbian OS :

> https://www.raspberrypi.org/downloads/

 Quick start to Raspberry pi :
> https://www.raspberrypi.org/learning/software-guide/quickstart/