What is a USB 2.0 and USB 3.0?


wikipedia starting point. use sources cited research if academic purposes. if personal, read wiki article on it. there for!

wiki:

designer: dec, ibm, intel, microsoft, nec , nortel

*usb 2.0: released in april 2000. added higher maximum signaling rate of 480 mbit/s (effective throughput 35 mb/s or 280 mbit/s) (now called "hi-speed")

*usb 3.0 released in november 2008. standard claims theoretical "maximum" transmission speed of 5 gbit/s (625 mb/s). usb 3.0 reduces time required data transmission, reduces power consumption, , backward compatible usb 2.0.

i'm doing little bit of research... usb 2.0 , usb 3.0? invented them, when invented, , speed?
:)


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