In digital bus architecture, what is the purpose of a bus?

In digital bus architecture, what is the purpose of a bus?

• A. To connect multiple devices and share data signals
• B. To provide power only
• C. To store data
• D. To filter noise

Answer: (A)

A bus serves as a shared communication pathway that links several components so they can talk to each other. It carries data, addresses, and control signals over a common set of wires, allowing devices like the processor, memory, and I/O to exchange information without needing a separate wire for every connection. The width of the data portion of the bus determines how many bits can move at once, affecting how fast data can be transferred. Power delivery, data storage, and noise filtering are handled by separate parts of the system, not by the bus itself—the bus is about enabling multiple devices to share signals and coordinate communication.

A bus serves as a shared communication pathway that links several components so they can talk to each other. It carries data, addresses, and control signals over a common set of wires, allowing devices like the processor, memory, and I/O to exchange information without needing a separate wire for every connection. The width of the data portion of the bus determines how many bits can move at once, affecting how fast data can be transferred. Power delivery, data storage, and noise filtering are handled by separate parts of the system, not by the bus itself—the bus is about enabling multiple devices to share signals and coordinate communication.