Node.js is an event-driven runtime system, which uses the Google V8 JavaScript engine. It is used by scalable web applications that require real-time interaction between a web server and the Internet users and can considerably speed up the performance of any website that’s using it. Node.js is designed to handle HTTP web requests and responses and incessantly supplies small amounts of info. For example, in case a new user fills a signup form, as soon as any information is entered in any of the boxes, it is forwarded to the server even if the rest of the boxes are not filled out and the user hasn’t clicked on any button, so the info is processed a lot faster. In comparison, conventional systems wait for the whole form to be filled and one huge chunk of information is then submitted to the server. Regardless of how small the difference in the information processing time may be, circumstances change if the site grows bigger and there’re lots of users using it at the same time. Node.js can be used by online booking portals, interactive web browser-based games or live chat platforms, for instance, and plenty of corporations, among them Yahoo, LinkedIn and eBay, have already implemented it in their services.