Ask HN: Concepts the modern tech industry falsely believes it invented?

To rephrase, it would be something that someone new to the tech industry might falsely assume is an invention of the modern tech industry (ie in the last 10-20 years) but has actually been around for much longer.

EDIT: Removed my initial list of examples because people were making fun of them (and rightly so, the lists in the comments are far better!)