Usb Host

Some articles on usb, host, usb host:

Universal Serial Bus - System Design
... The design architecture of USB is asymmetrical in its topology, consisting of a host, a multitude of downstream USB ports, and multiple peripheral devices ... Additional USB hubs may be included in the tiers, allowing branching into a tree structure with up to five tier levels ... A USB host may implement multiple host controllers and each host controller may provide one or more USB ports ...

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    Those of us who are in this world to educate—to care for—young children have a special calling: a calling that has very little to do with the collection of expensive possessions but has a lot to do with the worth inside of heads and hearts. In fact, that’s our domain: the heads and hearts of the next generation, the thoughts and feelings of the future.
    Fred M. Rogers, U.S. writer and host of Mr. Rogers Neighborhood. “That Which is Essential Is Invisible to the Eye,” Young Children (July 1994)