Internal bus

In computer architecture, a bus is a subsystem so as to transfers data between computer components within a computer or between computers. Unlike a point-to-point connection, a bus can rationally connect several peripherals in excess of the same set of wires. Each bus defines its set of connectors to bodily plug devices, cards or cables jointly.

Early computer buses were literally similar electrical buses with multiple connections, but the term is now used for any physical arrangement that provides the same logical functionality as a equivalent electrical bus. Modern computer buses can use both parallel and bit-serial connections, and can be wired in also a multidrop (electrical parallel) or daisy chain topology, or linked by switched hubs, as in the container of USB.