About Node JS

What exactly is a node?

a connection point in a network that is a processing device with an assigned address, as a router, computer terminal, peripheral device, or mobile device:nodes on the internet;In a well-designed network, the failure of one computer node does not cause a failure in the network.

Who Uses Node.js?

Following is the link on github wiki containing an exhaustive list of projects, application and companies which are using Node.js. This list includes eBay, General Electric, GoDaddy, Microsoft, PayPal, Uber, Wikipins, Yahoo!, and Yammer to name a few.

Concepts

Where to Use Node.js?

Following are the areas where Node.js is proving itself as a perfect technology partner.

I/O bound Applications

Data Streaming Applications

Data Intensive Real-time Applications (DIRT)

JSON APIs based Applications

Single Page Applications

Where Not to Use Node.js?

It is not advisable to use Node.js for CPU intensive applications.

Source : https://www.tutorialspoint.com/nodejs/nodejs_introduction.htm