Evented IO Asynchronous framework & Server Side JavaScript. You probably have heard these buzzwords of late, well, Node is partly to blame for that.
Node.js has quickly become a very popular asynchronous framework for JavaScript. It is built on top of the same V8 engine that the Chromium and Google Chrome web browsers use to interpret JavaScript. With the addition of networking and file system API support, it has quickly proved to be a capable tool for interacting with IO in a asynchronous way.