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Type of serial bus that allows peripheral devices (disks, modems, printers, digitizers, data gloves, etc.) to be easily connected to a computer. A plug-and-play interface, it allows a device to be added without an adapter card and without rebooting the computer (the latter is known as hot-plugging). The USB standard, developed by several major computer and telecommunications companies, supports data-transfer speeds up to 12 megabits per second, multiple data streams, and up to 127 peripherals.
Variants of USB
USB in full Universal Serial Bus
This entry comes from Encyclopædia Britannica Concise. For the full entry on USB, visit Britannica.com.