The main role of a web server is tohost filesserve static contentserve dynamic content

The main role of a web server is to host files, serve static content, and serve dynamic content. Here's a step-by-step breakdown:

1. Host Files: A web server's primary function is to store and host files. These files can be in various formats such as HTML, CSS, JavaScript, images, videos, etc. When a user requests a file (for example, by typing a URL into their browser), the web server finds the requested file and sends it to the user's browser.

2. Serve Static Content: Static content refers to files that are fixed and do not change. This includes HTML files, CSS stylesheets, JavaScript files, images, etc. When a user requests static content, the web server sends the file as it is stored, without making any changes.

3. Serve Dynamic Content: Unlike static content, dynamic content can change and is often generated in real-time. This includes content that is personalized for each user or content that changes based on user interaction. To serve dynamic content, the web server often needs to interact with a database or other server-side technologies. For example, when a user logs into a website, the web server might retrieve the user's information from a database and generate a personalized webpage.

In summary, a web server's main role is to host files and serve both static and dynamic content to users.