Tags | skill/web_intro |
Hard Prerequisites | |
IMPORTANT: Please review these prerequisites, they include important information that will help you with this content. | |
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The Internet is huge and complicated. We won’t be able to tell you absolutely everything about how it works. But we can tell you enough that you understand how to think about it.
You can think of the Internet as a bunch of computers that can send messages back and forth, and that can execute specific algorithms based on those messages.
There are a few different things a computer might need to do:
It’s worth noting that not all computers can do all of these things. There are computers that exist on the internet that only talk to other computers and have no user interface at all.
Generally, you interact with the Internet using a web browser such as Chrome, Firefox, Safari, Edge, or Internet Explorer. There are other ways to interact with the Internet but we’ll focus on web browsers for now.
A web browser is a piece of software that can display web pages and interact with the internet. When a web browser displays a web page it’s actually executing some code.
Web browsers all support the following languages:
When you access a website then your web browser will fetch some HTML, CSS, and JavaScript code files from another computer on the Internet, and then it will execute the code in order to draw a “user interface” (UI) for you to interact with.
Give these a read: