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USB - Version History
By admin | May 19, 2007
USB Version History
USB logo
- USB 1.0 FDR: Released in November 1995.
- USB 1.0: Released in January 1996.
- USB 1.1: Released in September 1998.
- USB 2.0: Released in April 2000. The major feature of this standard was the addition of high-speed mode. This is the current revision.
- USB 2.0: Revised in December 2002. Added three speed distinctions to this standard, allowing all devices to be USB 2.0 compliant even if they were previously considered only 1.1 or 1.0 compliant. This makes the backwards compatibility explicit, but it becomes more difficult to determine a device’s throughput without seeing the symbol. As an example, a computer’s port could be incapable of USB 2.0’s hi-speed fast transfer rates, but still claim USB 2.0 compliance (since it supports some of USB 2.0).
High Speed USB logo
USB On-The-Go Supplement
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USB OTG Logo
- USB On-The-Go Supplement 1.0: Released in December 2001.
- USB On-The-Go Supplement 1.0a: Released in June 2003.
- USB On-The-Go Supplement 1.2: Released in April 2006. This is the current revision.
Wireless USB
- Wireless USB: Released on May 12, 2005. Wireless USB uses UWB (Ultra Wide Band) as the radio technology.
Wireless USB Logo
Source: http://en.wikipedia.org/wiki/Usb
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