| http://www.w3.org/ns/prov#value | - Many standardized bus structures, including the IEEE 1394 serial bus, the USB serial bus, and ???powered Ethernet??? (e.g. IEEE 802.3af and similar technologies) as examples, provide for an on-cable power line in order to supply power to operate peripherals and network devices and circuits such as hard drives, keyboards, mice, DVD players, and computers, and/or to keep the physical layer of a devi
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