I think your mention of boot disks and sectors is a conceptual abstraction that is not relevant to the basic idea.
Taking a literal technology example, and including the design choices of some corporation, has nothing to do with other possibilities or choises and designs that function without the peripheral devices you specifically point out.
What about a system that doesn't operate according to ideas of "booting" or "restarting"?
Taking a literal technology example, and including the design choices of some corporation, has nothing to do with other possibilities or choises and designs that function without the peripheral devices you specifically point out.
What about a system that doesn't operate according to ideas of "booting" or "restarting"?