Bus

Electrical BUS
An electrical BUS is a connection between multiple electrical devices. A BUS can allow the combining of multiple outputs, inputs or power lines in a circuit. A bus often takes the form of a wire or a printed area of circuit board conductor that terminate at multiple connectors to enable the addition of other components to the BUS.

Data BUS
In computing terms, a BUS is a subsystem that transfers data through the computer's components or even between computers. For a modern example of a data bus, see Univeral Serial BUS (USB)