Seems like a rough place to start.

Best start with like UX basics of a computer or a phone.

This is how you turn on a desktop, this is how you turn on a laptop and this is how you turn on a phone.

On phone you touch the screen or use buttons. On laptop and desktop there is a keyboard. On a laptop it is attached to the rest of the computer.

Desktops have monitors and everything is connected by cables.

Stuff like that.