Data Bus

An essential hardware sub-system within a computer.

The purpose of the data bus is to carry data from one part of the computer to another. For example a data bus is used to move data between RAM and the CPU.

There are also data busses within the CPU chip itself to transport data between sub-systems.

Physically the data bus consists of a group of tracks \ wires \ conductors. An 8 bit bus has eight parallel tracks, a 32 bit bus has 32 such tracks or conductors.

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