A hyperlink is an interface element, and what I mean by that is, when you’re using software on your phone or your computer, there’s a lot of code behind the interface that’s giving all the instructions for the computer on how to manage it, but that interface is the thing that humans interact with: when we press on this, then something happens.

When they first came around, they were pretty simple and not particularly glamorous. Designers today have a huge range of options. The hyperlink uses what’s called a markup language – HTML. There’s a little string of code. And then you put the address of where you want to send the person.

https://www.ted.com/talks/margaret_gould_stewart_how_the_hyperlink_changed_everything