[...], while USB lets you connect virtually anything
(handwaves
details)
Provided it has, or can have, substantial intelligence and
fairly-high-speed interfaces built in (high speed compared to, say,
serial, at any rate).
Provided it doesn't need to initiate sends to the host, or is
non-real-time enough, and the host is sufficiently overmuscled to have
spare cycles enough, that making the host poll is acceptable.
Probably provided a few other things, too, which I might know if I knew
USB better.
so the potential exists to reduce the number and
diversity of
sockets.
True. Not worth the costs in my opinion, not for most applications at
any rate. (Not that I have any evidence anyone cares about my opinion.)
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