First a web browser knows how to go to a Web Server on the Internet and request a page so that the browser can pull the page through the network to your machine. Second a web browser knows how to interpret a set of HTML tags within the page to display the page on your screen as the page's creator intended it to look. Web Server - A web server is a piece of computer software that can respond to a web browser's request for a page and sends the page to the web browser through the Internet. Every day there are millions of web servers delivering pages to the web browsers of tens of millions of people through the network we call the Internet. We can create web pages without having a web server.
Web browser can easily pick up web pages from personal machine without owning a web server.
On a web page, there might be links, on which if we press the mouse button, the browser automatically reads the URL and that page appears on the screen. Browser forms a connection to a web server at the given URL, requests a page and receives it. The browser then formed a connection to the server at that IP address on port 80. The server returned the HTML text for the web page to the browser. The browser read the HTML tags and formatted the page onto your screen.