| Internet | The worldwide system of computers, all connected together in a network. |
| World Wide Web | The worldwide system of web pages that are linked to one another. |
| Web Page | A document that can be viewed on the World Wide Web. Most web pages are written using HTML. |
| HTML | HyperText Markup Language. A way of marking up a text document with instructions telling a web browser how to display it. |
| Web Browser | A computer program that gets a web page from another computer, and then displays the web page so you can read it. The web browser uses the HTML in the web page to tell it how to display the page. |
| Link | A direct link from one web page to another. When you click on a link in a web page, your web browser reads and displays the web page indicated by that link. |
| Tag | A tag is an HTML instruction. When a web browser reads a tag, it follows the instruction indicated by that tag. For example, <u> is a tag that tells the web browser to underline words after the tag. |
| Attribute | An attribute is an instruction inside a tag. For example, you can use the color attribute within the font tag to say what color the text should be. Like this: <font color="red">red</font> |