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USB - Standardization Of The Protocol
By admin | April 22, 2007
The design of USB is standardized by the USB Implementers Forum (USB-IF), an industry standards body incorporating leading companies from the computer and electronics industries. Notable members have included Apple Computer, Hewlett-Packard, NEC, Microsoft, Intel, and Agere.
As of 2006 the USB specification is at version 2.0 (with revisions). Hewlett-Packard, Intel, Lucent, Microsoft, NEC, and Philips jointly led the initiative to develop a higher data transfer rate than the 1.1 specification. The USB 2.0 specification was released in April 2000 and was standardized by the USB-IF at the end of 2001. Previous notable releases of the specification were 0.9, 1.0, and 1.1. Equipment conforming with any version of the standard will also work with devices designed to any previous specification (known as: backwards compatibility).
Smaller USB plugs and receptacles, called Mini-A and Mini-B, are also available, as specified by the On-The-Go Supplement to the USB 2.0 Specification. As of 2nd August, 2006, the specification is at revision 1.2.
Source: http://en.wikipedia.org/wiki/Usb
Topics: Computers & Software |