what is the difference between USB 1.1 and 2.0 ports?

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stl1025stl1025
Posted:
in Genius Bar edited January 2014
is this something significant in the new iMacs. i dont even know what they are used for. i know wut a USB port is on a pc, just figured its where u plug it in. can ne1 help me out?

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  • Reply 1 of 2
    ryaxnbryaxnb Posts: 583member
    USB 1.1 runs at up to 8mbps, or 1 Megabyte a second. An uncompressed image may take about 1.5-2 megabytes, for comparision. USB 2 runs at up to 480mbps, or 60 megabytes a second. USB 2 tends to not run as fast as FireWire, despite it's rtating (only 50 megabytes/sec.) USB 2 and FireWire are good for devices such as high-end cameras, scanners, videocams, webcams, etc. USB 2 also has other improvements compared to USB 1.1, such as better power management and hot-plugging (plugging in while the computer is on.)

    Unlike FireWire, USB 2 is backwards-compatibile with USB 1.1.
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  • Reply 2 of 2
    ryaxnbryaxnb Posts: 583member
    Hey could a moderator move this to Current Hardware or the lounge please?
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