You are probably looking at this on a laptop or desktop right now. Maybe you are using Firefox, Chrome, or even an older version of Internet Explorer. The point is you have a Web browser and you want to know how the web works. You might even want to build your own site.
That is all you need. You do not need a degree in computer science. You just need to understand four basic concepts. The jargon can feel heavy at first. It usually clicks after you see how the pieces fit together.
What is a Web Page?
A web page is not magic. It is a simple text file. It contains two things: the actual text you see and a set of HTML tags. These tags are instructions. They tell the browser how to format that text.
Do you want red headlines? Columns? Specific fonts? The tags handle that. The browser interprets these commands to decide how to render the content on your screen. Without tags, you just get raw, unformatted text.
The Role of HTML
HTML stands for Hyper Text Markup Language. Think of it as a markup language. It describes structure and format.
If you only care about black-and-white text with no styling, you do not need HTML. But you want more. You want graphics embedded. You want color. You want headlines. That is why you use HTML. It is the language that turns plain text into a structured page.
The Browser’s Job
A Web browser is a computer program. It is also called a software application or simply an application. Examples include Netscape Navigator or Microsoft Internet Explorer.
The browser does two main things:
1. It contacts a Web server to request a page. It pulls that page through the network into your machine.
2. It interprets the HTML tags inside that page. It renders the page exactly as the creator intended.
The Web Server Explained
A Web server is software that responds to browser requests. It delivers the page to your browser over the Internet.
Think of a web server like an apartment complex. Each apartment holds a different web page. To put your page there, you pay rent. This space is your hosting charge. The person or company managing the building is your host.
This setup lets anyone, anywhere, view your page. Millions of servers deliver pages to tens of millions of browsers every day.
Start Locally
You do not need a server to start experimenting. Your browser can read pages you create on your own computer. This is the best way to learn. Play with the tags. See what breaks. See what works.
Once you get comfortable creating pages, you will want to put them on a real server. That way, people around the world can load them. We will cover how to move from your local machine to a live host later on. For now, focus on the basics.
