The Internet is a global network connecting millions of computers, allowing them to share information. A web browser is a software application that helps you access websites. In this chapter, we’ll explore how the Internet works, what happens when you type a URL, and how browsers display web pages.
The Internet is a vast network of interconnected computers and servers that communicate using standardized protocols. It allows:
✔ Browsing websites (Google, Facebook, Wikipedia)
✔ Sending emails (Gmail, Outlook)
✔ Streaming videos (YouTube, Netflix)
✔ Online gaming & cloud storage
| Component | Role |
|---|---|
| Servers | Store websites and data (e.g., Google’s servers). |
| Clients | Your device (PC, phone) that requests data from servers. |
| Routers & ISPs | Direct traffic between devices and servers. |
| Protocols (HTTP, TCP/IP) | Rules for data exchange. |
A web browser is software that fetches and displays web pages. Popular browsers include: