Can you explain what is meant by 'data bus' in system architecture?

The term "data bus" in system architecture refers to a set of conductors or communication lines through which data is transmitted between different components of a computer or device. It is a physical or logical channel that facilitates the exchange of information between the processor, memory, input-output devices, and other modules.

For example, in computer architecture, a data bus can be 32-bit or 64-bit, which determines how many bits of data can be transmitted simultaneously. The data bus is part of the overall system bus, which also includes the address bus and control bus.

Example: the processor writes data to memory via the data bus, transmitting bytes or words of data along these lines.