Python is a open source, interpreted programming language which can be used to build many application and almost can be used for anything across the technology.
Django is a Popular Webapp development framework build with Python. It offers customizable Admin page which is offered by Django itself.
C Language is general purpose procedural programming language. It is vastly used where we directly interact with hardware or memory. It is very popular due to its memory efficiency and user friendly nature. It is easy to learn for absolute begineers.
C++ is a modern day updated version of C. Where C was a procedural programming, C++ offers you OOP capabilities.
C#, pronounced "See sharp", is general-purpose, high-level programming language designed by Microsoft. It is object-oriented Programming Language which supports application which run on .NET framework
Java is most loved and widely used programming languages, which is capable of building cross platform applications. Visit the website and learn Java at your own pace with best resources.
JavaScript (JS) is a text-based programming language used both on the client-side and server-side that allows you to create dynamic and interactive websites. It is one of the three core technologies of the World Wide Web, alongside HTML and CSS.
Visit the W3C(World Wide Web Consortium) website which monitors and regulates the websites across the world here you can learn about web technologies.