C is a general-purpose programming language, developed in 1972, and still quite popular. C is very powerful; it has been used to develop operating systems, databases, applications, etc.
it is primarily used for Internet-based applications, Java is a simple, efficient, general-purpose language. Java was originally designed for embedded network applications running on multiple platforms.
HyperText Markup Language (HTML) is the basic scripting language used by web browsers to render pages on the world wide web. Nowdays HTML5 is most populer
CSS is the language for describing the presentation of Web pages, including colors, layout, and fonts. CSS is independent of HTML and can be used with any XML-based markup language.
JavaScript is a text-based programming language used both on the client-side and server-side that allows you to make web pages interactive. Document Object Model (DOM) is a programming interface for web documents.
PHP is an acronym for "PHP: Hypertext Preprocessor" PHP is a widely-used, open source scripting language. PHP scripts are executed on the server. PHP is free to download and use.
MySQL is an open-source relational database management system. What is MySQL used for? MySQL is a tool used to manage databases and servers, so while it's not a database, it's widely used in relation to managing and organising data in databases
Packet Tracer is a cross-platform visual simulation tool designed by Cisco Systems that allows users to create network topologies and imitate modern computer networks. The software allows users to simulate the configuration of Cisco routers and switches using a simulated command line interface.
Kali Linux, an Advanced Penetration Testing Linux distribution used for Penetration Testing, Ethical Hacking and network security assessments.