Node.js is a cutting-edge, event-driven input/output system built for websites which support real-time communication. A few instances of such websites would be web-based browser game portals, live chat rooms or hotel booking portals. Node.js processes the info exchanged between the site and its visitors in tiny bits, which improves the load speed and the performance of the website considerably. If a certain form with three boxes has to be filled by a user, for instance, normally all three boxes should be filled and the whole content is then submitted as one big chunk of information to the web server. With Node.js, the content of the first box is processed as soon as it is entered, before the user writes anything in the second one. Therefore, a lot more information can be handled much faster and more efficiently in comparison to any other system, which can exert a huge effect on the website’s overall performance. Node.js is already being employed by some of the top IT companies such as Microsoft and Yahoo.