Web application development has reached the next level with HTML5 and WebSockets. The revolutionary enhancements in web development technologies have equipped developers with modern tools and techniques. Using WebSockets they can create web applications which can send data not only from the client side but from the server side as well. Web applications with real-time data transfer can be created with a lot lower use of bandwidth. WebSockets by complementing HTML5 enhanced feature can make future applications powerful. Let's talk about the basics of the Web before understanding WebSockets in detail.