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IEEE 1394 is an interface ... Apple previously sold a Thunderbolt to FireWire Adapter, ... there are fundamental differences between USB and FireWire. USB requires ...
The OHCI standard for USB is similar to the OHCI standard for IEEE 1394, but supports USB 1.1 (full and low speeds) only; so as a result its register interface looks completely different. Compared with UHCI, it moves more intelligence into the controller, and thus is accordingly much more efficient; this was part of the motivation for defining it.
IEEE 1394 (branded "FireWire") is a digital data transfer protocol commonly used for digital cameras (common on MiniDV tape camcorders), but also used for computer data and audio data transfers. Unlike Point-to-Point connections listed above, IEEE 1394 is able to host several signals on the same wire, with the data delivered and shown on the ...
The most significant technical differences between FireWire and USB include: USB networks use a tiered-star topology, while IEEE 1394 networks use a tree topology. USB 1.0, 1.1, and 2.0 use a "speak-when-spoken-to" protocol, meaning that each peripheral communicates with the host when the host specifically requests communication.
GPIB/HPIB (IEEE-488.1-2003) IEEE-488 max. 64 Mbit/s: 8 MB/s: FireWire (IEEE 1394) 100: 98.304 Mbit/s: 12.288 MB/s: 1995 FireWire (IEEE 1394) 200: 196.608 Mbit/s: 24.576 MB/s: 1995 FireWire (IEEE 1394) 400: 393.216 Mbit/s: 49.152 MB/s: 1995 USB 2.0 high speed: 480 Mbit/s: 60 MB/s: 2000 FireWire (IEEE 1394b) 800 [44] 786.432 Mbit/s: 98.304 MB/s ...
USB version is not specified, [1]: §8.5 but if supported, it would have been intended for contemporary USB standards. The USB connector is intended for passing mouse movements from a projector's wireless remote to the computer's presentation software and for firmware upgrades. [2] FireWire, if supported, must be compliant to IEEE 1394-1995 ...