This tutorial is designed for software programmers who wants to learn the basics of Node.js and it's architectural concepts in simple and easy ways. This tutorial will give you enough understanding on components of Node.js with suitable examples. Node.js is a very powerful JavaScript based framework/platform built on Google Chrome's JavaScript V8 Engine. It is used to delevop I/O intensive web applications like video streaming sites, single page applications and other web application. Node.js is open source, completely free, and used by thousands of developers around the world.