The web, also known as the World Wide Web (WWW), is a system of interlinked digital information accessible through the Internet.
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It is a platform that allows users to access, share, and interact with content ranging from text, images, videos, and multimedia to web-based applications.
Key Components of the Web
- Web Pages
Web pages are documents written in markup languages like HTML, which are displayed in web browsers. They often include additional elements such as CSS (for styling) and JavaScript (for interactivity). - Websites
A collection of related web pages under a common domain name (e.g., www.example.com). Websites can range from simple informational pages to complex platforms like e-commerce stores or social networks. - Web Servers
Servers host the content of web pages and handle user requests by delivering the requested pages to browsers. - Web Browsers
Software applications like Google Chrome, Mozilla Firefox, and Safari allow users to access and interact with web pages. - Hyperlinks
Links that connect web pages, enabling easy navigation across different sites or within the same website.
How the Web Works
- User Requests
A user enters a URL (Uniform Resource Locator) into a browser or clicks on a hyperlink. - DNS Lookup
The browser sends the URL to a DNS (Domain Name System) server, translating the domain name into an IP address. - Server Response
The browser connects to the corresponding web server using the IP address and requests the web page. - Rendering
The server sends the web page’s code (HTML, CSS, JavaScript) back to the browser, which processes and displays it on the user’s screen.
Types of Web
- Static Web (Web 1.0)
- Early version of the web with static pages and minimal interactivity.
- Users could only view information without interacting or contributing content.
- Dynamic Web (Web 2.0)
- A modern version with interactive features.
- Users can contribute, interact, and engage through social media, blogs, forums, and e-commerce platforms.
- Semantic Web (Web 3.0)
- The future of the web is where content is machine-readable and personalized through AI and advanced technologies like blockchain and IoT.
Applications of the Web
- Education: Online learning platforms like Coursera and Udemy.
- Commerce: E-commerce websites like Amazon and Flipkart.
- Social Interaction: Social media platforms like Facebook and Instagram.
- Entertainment: Streaming platforms like Netflix and YouTube.
- Communication: Web-based email and messaging platforms.
Importance of the Web
- Global Connectivity: Bridges distances by connecting users worldwide.
- Information Access: Provides instant access to a vast amount of information.
- Business Growth: Empowers businesses to reach global markets through online presence.
- Innovation: Drives advancements in technology, communication, and interaction.
The web continues to evolve, shaping how people interact, work, learn, and entertain themselves in the digital era.