Why Node Js ? Node.js free and opensource. Node.js is a very powerful JavaScript-based framework/platform built on Google Chrome's JavaScript V8 Engine Node.js is single threaded, non blocking, asynchronous programming language. Work on different platform like Linux, Unix, Windows, Mac.. etc How Node is different from PHP and ASP ? How PHP and ASP Handle Request. PHP or ASP send request to the server. They wait till the request get completed. Return the data when request get completed. They they send another new request. How Node.js Handle request. Node.js send request to the server. Pick new request and do...