Networking and file IO

In addition to the powerful non-blocking asynchronous nature of Node.js, it also has robust networking and filesystem tools available via its core modules. With Node.js's networking modules, you can create server and client applications that accept network connections and communicate via streams and pipes. Node contains a module named as fs or filesystem which is totally responsible for all kind of read write operations performed on files. It also takes an advantage of streaming feature of node to perform those operations.