  CNET GLOSSARY: Terms for the techie
USB
Universal Serial Bus A hardware interface used to connect devices such as computer mice, keyboards, audio players, printers, scanners, digital cameras, and more. USB is hot-swappable, meaning that a computer does not need to be turned off when new devices are plugged in; plug-and-play, meaning that the devices do not need to be configured; and supports data transfer rates of up to 60MB per second (in USB 2.0). In addition, as many as 127 peripherals can be daisy-chained off of one port. 
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