Universal Serial Bus
Universal Serial University. Overview History of USB Overview Future of USB USB WUSBOverviewzKey features of USB:zLow costzSingle connector typezHot pluggablezDevice handlingzCable powerUSBzUSB specification introduced in 1994zUSB specification finalized in 2001zBecame popular due to cost/benefit advantagezEg. IEEE 1394 high bandwidth, high costzThree generations of USBzUSB and WUSBUSB OverviewzAlso referred to as SuperSpeed USBzSpeeds 10x faster than (5 Gbps in controlled test environment)zTransfer of 25 GB file in approx 70 seconds (see chart)zExtensible Designed to scale > 25GbpszOptimized power efficiencyzNo device polling (asynchronous notifications) zLower active and idle power requirementszBackward compatible with USB device will work with USB hostzUSB device will work with USB hostUSB
Universal Serial Bus By S.Senthilmurugan. Asst.Professor/ICE. SRM University. Chennai.
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