| 释义 | 
		USB (Universal Serial Bus) A serial bus with a data transfer rate of 12 Mbps for connecting a micro- computer to peripherals such as keyboards, mice, printers, and digital cameras through a single, general purpose port. USB is a considerable improvement over the RS-232 interface, but does not compare favorably with IEEE 1394, also known as FireWire in the Apple computer domain. See also  1394,  bus,  FireWire, IEEE,  microcomputer,  peripheral,  port,  RS-232, and  serial.   |