Node.js is a special tool that runs JavaScript on servers and is ideal for microservices and API development. With its helper tool, it can easily install and manage extra programs. It can also work well with MongoDB to make programs more efficient. Node.js can work on different computers such as Windows or Mac and allows for handling heavy traffic and real-time applications efficiently.

HTML, or Hypertext Markup Language, is the main language used for building websites. HTML provides the framework for web pages. If you want to make a career in web designing and development then you have to learn HTML. 

React JS is a popular tool for enhancing website appearance and functionality. It allows developers to create reusable components, making updates and changes quickly.

To create an app, you need a Full-stack software developer who knows MEAN or MERN technologies. These are based on JavaScript and used to make powerful apps.To become a Full-stack expert, you can take an online training course in India. 

Python is an interpreted, high-level, general-purpose programming language. Created by Guido van Rossum and first released in 1991, Python's design philosophy emphasizes code readability with its notable use of significant whitespace.

Robotic Process Automation (RPA) is an emerging form of technology that automates administrative processes using software robots or artificial intelligence (AI) agents.