Node.js is a framework to develop highly-scalable applications which can handle tens of thousands of simultaneous client connections efficiently.

Node.js is a framework to develop highly-scalable applications which can handle tens of thousands of simultaneous client connections efficiently.

It is intended to build scalable network programs easily. So, it can be used to develop web applications accountable to high traffic.

Node.js is based on V8 JavaScript Engine

Real world usage of Node.js

Though pretty young, Node.js is already being used by a lot of Organizations, Projects, and Applications. The following list is an indication of, for what kind of applications Node is being used :

• HTTP Proxy
  
• IRC Bot / Chat / Messaging
  
• Web service (data)
• real time analysis (data, email)
• Client of another web service (Like Twitter client)
• real time collaboration
• Log and log monitoring
  
• Web-based software to serve a specific client requirement (like reservations book for restaurateurs, Grade book)
• Application server