**Full form of HTML: Hypertext Markup Language**

HTML stands for Hypertext Markup Language. It is the standard markup language used for creating web pages and applications. HTML uses various tags and elements to structure the content and define the layout of a webpage. Here is a detailed explanation of HTML:

**Hypertext:**
Hypertext refers to a text that contains links to other texts or documents. In the context of HTML, it allows users to navigate through different webpages by clicking on links.

**Markup:**
Markup refers to the process of adding tags to text to define its structure and presentation. HTML uses markup to specify how elements should be displayed on a webpage.

**Language:**
HTML is a language that web browsers understand. It provides a way to communicate the structure and content of a webpage to the browser, which then renders it accordingly.

**Key Features of HTML:**

1. **Tags:** HTML uses tags to define elements and structure the content of a webpage. Tags are enclosed within angle brackets (< />) and provide instructions to the browser on how to display the content.

2. **Structure:** HTML allows for the logical structuring of content using various tags such as headings, paragraphs, lists, tables, etc. This helps in organizing and presenting information in a meaningful way.

3. **Hyperlinks:** Hyperlinks are an essential part of HTML. They allow users to navigate between webpages or different sections within a webpage. Links are created using the anchor tag () and the href attribute to specify the target destination.

4. **Multimedia Support:** HTML supports the inclusion of multimedia elements such as images, audio, video, and interactive components. This enhances the visual appeal and functionality of webpages.

5. **Forms:** HTML provides form elements to collect user input, such as text fields, checkboxes, radio buttons, dropdown menus, etc. This enables interactive features like user registration, surveys, and data submission.

6. **Compatibility:** HTML is a language recognized by all major web browsers, making it compatible across different platforms and devices. It ensures consistent rendering of webpages regardless of the browser used.

In conclusion, HTML is a markup language that allows the creation of structured webpages by using tags to define elements, structure content, and provide instructions to web browsers. It facilitates the creation of interactive and visually appealing websites, making it a fundamental technology for web development.

H.T.M.L stand for Hyper Text Markup Language.
It was invented by Sir Tim Berners Lee in March 1989