Which of these best describes the difference between ports and slots?

Regional Passport Office difference between slot and port Game card slot Nintendo Switch game cards microSD card slot Compatible USB Port x2 on the side System connector AC adapter difference between end mill and slot drill AT KEYBOARD PORT – the port for connecting the computer keyboard on many PC's from the 80's till the mid 90's replaced by PS2 ports and then USB PS2 PORT –

difference between slot and port port B-1 Fishing Vessel: You are a crewmember on a temporary basis on a fishing vessel that has a home port or operating base in the United States H-2