Underlined text, such as text and folder names is referred to as

Underlined text, such as text and folder names is referred to as Hyperlink.
• Alternatively referred to as a link and web link, a hyperlink is an icon, graphic or text that links to another file or object.
• Hyperlinks are what allow web pages to connect to other web pages and without them you would need to know the URL (Uniform Resource Locator) for every page on the Internet.