interface that connects between a computer and peripheral devices (such as a keyboard, game controllers, telephone, printer, etc.)
A USB on a computer is a place where you can attach another piece of equipment, for example a printer. USB is an abbreviation for `Universal Serial Bus'. The device plugs into one of the laptop's USB ports. universal serial bus a way of connecting equipment such as a mouse and printer to a computer using wires so that all the equipment can work together. in full Universal Serial Bus 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