Re: turning a PC on...
"You're trying to eject a floppy disc. The on-button is that one."
I'm a pro. Really, really I am. I have *centuries* of experience.
My home PC has a "Multimedia Optical Drive" bay. This has a Blu-ray writer in it. It also reads CD's and DVD's.
It also has an "Expansion Bay". This has nothing in it. It does nothing. It does not read discs. There isn't even a tray in there I can put a disc onto.
Both bays have a flap-door. Both bays have a little silver radio-button to eject stuff.
*EVERY* *DAMNED* *TIME*.
I'm a professional. I used to get paid to *teach* things like this ...