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HTML
HTML (HyperText Markup Language) is the standard language used to create and structure pages on the web. It uses tags (like <h1>, <p>, <img>, etc.) to define elements such as headings, paragraphs, images, links, and other content on a webpage. Browsers read HTML and display the content in a structured format for users.
CSS
CSS (Cascading Style Sheets) is a stylesheet language used to style and design web pages written in HTML or XML. It controls the layout, colors, fonts, spacing, and overall visual appearance of a website. CSS separates the content (HTML) from the presentation (design), making websites easier to maintain and update. By using CSS, developers can apply consistent styling across multiple pages and create responsive designs that work on different devices.
JavaScript
JavaScript is a high-level programming language used to create interactive and dynamic websites. It runs mainly in the web browser and allows developers to add functionality such as animations, form validation, dynamic content updates, and user interactions. JavaScript works together with HTML (structure) and CSS (design) to build modern web applications. It can also run on the server side using environments like Node.js, allowing developers to build full-stack applications with the same language.
PHP
PHP is a server-side scripting language mainly used for building dynamic websites and web applications. PHP code runs on a web server and generates HTML that is sent to the user’s browser. PHP originally stood for Personal Home Page, but now it stands for Hypertext Preprocessor.
SQL
SQL (Structured Query Language) is the standard language for storing, manipulating, and retrieving data in relational databases. With SQL you can create tables, insert and update records, filter results with powerful queries, join data across tables, and aggregate information for reports. It is used by databases such as MySQL, PostgreSQL, SQL Server, and Oracle, and is one of the most in-demand skills for developers and data analysts alike.
NoSQL
NoSQL means “Not Only SQL.” It refers to a type of database that does not use the traditional table-based structure used in SQL databases like MySQL or PostgreSQL. Instead of storing data in rows and columns, NoSQL databases store data in flexible formats such as documents, key-value pairs, graphs, or wide columns.
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