Common interconnect terminology in computers: In most modern computers, bulk data transfers move over a shared set of conductors known as the ________.
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Adata bus
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Bbus line
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Cbus cable
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Ddata line
Answer
Correct Answer: data bus
Explanation
Introduction / Context:Computer architectures organize communication between the CPU, memory, and peripherals using well-defined pathways. The term that captures the shared parallel conductors for moving binary words is foundational for understanding system diagrams and timing protocols.
Given Data / Assumptions:
- Context: conventional von Neumann or Harvard computer systems.
- Focus: common set of lines carrying data values.
- Naming conventions from textbooks and schematics.
Concept / Approach:The group of lines dedicated to carrying data is called the data bus. In many systems there are also an address bus (to select locations) and a control bus (for read/write strobes, interrupts, etc.). The word “bus” itself implies a shared pathway used by multiple devices according to an arbitration protocol.
Step-by-Step Solution:
Identify the function: moving data values between components.Match to standard bus taxonomy: data, address, control.Select the precise term used universally: “data bus.”Eliminate generic or nonstandard labels that do not convey function.Verification / Alternative check:Introductory computer organization texts and motherboard schematics explicitly label the shared data conductors as “DATA BUS.”
Why Other Options Are Wrong:
- bus line / bus cable: Vague and not specific to function.
- data line: Singular; does not capture the shared multi-bit nature.
Common Pitfalls:Confusing signal naming conventions; using “bus” to refer to any cable rather than a coordinated multi-signal interface.
Final Answer:data bus