Ask HN: Basic Tech Concepts for non-tech people?

What are some basic tech concepts that non-tech people need to understand before they learn how to code or interact with our tech savvy world? What things would it be useful for your sales/marketing/business department to understand about you or your job before interacting with you?

Here are a couple I've already come up with: - Binary numbers - How it sometimes takes a long time write simple things in code since you have to write every piece of it. - How the internet works.