> Most drives stay in their host machine until they die. Or until the host machine dies, in which case they have to be readable in another machine. (Happened

> Most drives stay in their host machine until they die. Or until the host machine dies, in which case they have to be readable in another machine. (Happened to me recently: the laptop's motherboard stopped working, I used its disk with an external case and an older operating system version while I waited for the warranty replacement.)