Wikipedia
USB (abbreviation of Universal Serial Bus), is an industry standard that was developed to define cables, connectors and protocols for connection, communication, and power supply between personal computers and their peripheral devices.
There have been three generations of USB specifications:
USB 1.x
USB 2.0, with multiple updates and additions
USB 3.x
Released in 1996, the USB standard is currently maintained by the USB Implementers Forum (USB …
USB - Wikipedia, the free encyclopedia