What is the primary role of the system bus within the data path of a computer…
2025
What is the primary role of the system bus within the data path of a computer system?
- A.
To hold instructions while they are being executed
- B.
To provide electrical power to connected hardware
- C.
To move data and control signals between system components
- D.
To perform mathematical computations
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Correct answer: C
The system bus is a collection of communication pathways that connect major computer components such as:
CPU
Main memory
Input/output devices
It primarily transfers:
Data signals → actual data being processed
Address signals → memory or device locations
Control signals → commands and synchronization information
The system bus generally consists of:
Data Bus
Address Bus
Control Bus
Without the system bus, different hardware components would not be able to communicate efficiently.