The document discusses the history and capabilities of Node.js. It describes how Node.js allows JavaScript to be used outside of browsers to build server-side applications. It provides an overview of Node.js' core components including the V8 engine, libev and libeio libraries. Finally, it demonstrates a simple "Hello World" Node.js program and discusses tools that can be used with Node.js projects.

1. Meraj Rasool Khattak
Technical Lead
GoodCore Software Inc.

2. 1. Background
2. jQuery, Prototype, Firebug and others
3. Node.js

3. HTML, JavaScript, DHTML and that’s all.

4.  Gmail and Ajax.
 Introduction of jQuery, Prototype and other
JS frameworks.
 Birth of Firebug

5.  The first incarnations of JavaScript lived in
browsers. Node.js really is just another
context: it allows you to run JavaScript code
in the backend, outside a browser.
 In 2009 Ryan Dahl created a framework that
appeared to propose an answer to the
technical challenge of interacting with a large
web audience in real-time.

6. 1. Google's V8 VM
2. libev
3. libeio

7.  Node leverages a number of existing open-
source projects: most importantly Marc
Lehmann's libev and libeio C libraries and
Google's V8 JavaScript engine. The libev and
libeio C libraries handle the intricacies of
event-driven networking and input/output
while the V8 engine allows Node to be
programmed using JavaScript.

8.  Node is conceptually composed of three
layers of functionality:
 The underlying core engine, a number of core
modules that add provide utility functions
and APIs, and community-created modules
for everything else.

10. 1. Installation
2. Hello World

11.  Node.js is really two things: a runtime
environment and a library.
 To install:
https://github.com/joyent/node/wiki/Installation
 Linux: apt-get, rpm or make.
 Windows: untar the package and run exe.

12. var http = require("http");
http.createServer(function(request, response) {
console.log("Request received.");
response.writeHead(200, {"Content-Type":
"text/plain"});
response.write("Hello World");
response.end();
}).listen(8888);

13.  WhiteBoard
 Google Docs Excel
 Trello – Project Collaboration Tool

14.  Audience questions.