"The MacOS came with certain assurances. No matter the manufacturer, if it had an Apple trademark, you could plug it in and it would work.
Everyman tech at its finest. There is still no platform that offers such ease.
In return for limited software options, we got software installations that didn't overwrite essential OS resources. In return for limited
hardware and upgrade choices, we got plug and play. No need to "hack" the OS or Mac itself to make a piece of hardware work. Just plug in
it and restart. More recently, USB and Firewire even eliminated the restart process." From OSOpinion.com.