Building blocks for Node

libuv :

• A high performance cross platform evented i/o library
• Replaces or abstracts several unix only library that is required by the project
• Built as a part of porting js to windows

V8

• Googles JavaScript engine (used in chrome)

JS, C++

• This is custom JavaScript / c++ code developed specifically for node

More about Node:

• Supports modular JavaScript
• Encourages non-blocking(asynchronous code)
• HTTP, Networking, and web sockets are 1st class citizens
• Low-level fast platform

All JavaScript is executed under Google's V8 Engine

• Predictable execution model ( As we have to deal with only one engine )
• ES 5 is supported in NodeJS 0.5.1 and later
• V8 also supports just in time compilation and optimizing compiler (Complied and cashed)