Removing ports. Zero upgrades possible - not even hard disk, memory.
In Apple’s case - repairing is near impossible for an average user. Even the fucking screws are non standard. They charge an arm and a leg for repairs.
Thank you for responding. Is there any particular model that is better off than others, used? My usecase is programming - I don’t game, but I edit videos
Also note, Amitabh is in his late seventies. I doubt he is interested in connections at his age.