Node.js is an open source, cross-platform environment built on Chrome's JavaScript runtime for fast and scalable server-side as well as networking applications.  It runs on various platforms and uses JavaScript on the server. As Node.js is an interface to the V8 JavaScript runtime, it enables event-driven programming to the web servers through a JavaScript interpreter that runs in the Chrome browser. The core advantage of Node.js is that it works on a non-blocking I/O model that makes it clean and usable.

AngularJS is an open source framework that can be used to develop a dynamic web application. It is entirely based on HTML and Javascript, hence undoing the necessity to learn a new syntax or programming language. The core aspect of AngularJS is that it changes static HTML into dynamic HTML. This is very much necessary in ensuring the subject website or web application is responsive to devices of all screen sizes and resolutions.  Moreover, AngularJS enables developers to advance HTML functionality by creating new constructs with use of its directives.

JavaScript is a scripting and programming language that allows you to implement complex things on web pages. It has evolved from a simple client-side scripting language into an incredibly powerful programming language that can assist in the creation of server-side applications in addition to the traditional client-side applications.  This description will be required to analyze the features of Angular and NodeJS as well as their benefits. 

What is HTTP

Hyper text transfer protocol is an application protocol which formed the foundation for the World Wide Web. It is a protocol to exchange hypertext. It is also known as stateless protocol as each command gets executed independently without the previous command knowledge. This simplifies the server design as there is no need for dynamic server allocation. If a mid-transaction failure occurs, none of the system parts become responsible for cleaning the present state of the server.

Drawbacks of HTTP