A motherboard

Question

A motherboard

BlackTom AI · Accepted Answer

The motherboard provides the central communication backbone of a computer, so the correct choice is b: it is used to allow other hardware components to communicate with each other.

1) Relevant knowledge points and concepts
- Motherboard definition: a printed circuit board that houses the CPU socket, memory slots, chipset, expansion slots, power connectors, and I/O interfaces.
- Role: it routes electrical signals and data between the CPU, RAM, storage devices, GPU, network controllers and peripherals via buses, traces and chipset logic.
- Distinction from other components: storage devices store data (non-volatile), the CPU processes instructions, and memory chips provide volatile or non-volatile storage.

2) Step-by-step reasoning
- Read each option and compare to the motherboard’s primary function.
- Option b describes a communication role. The motherboard contains buses (e.g., system bus, PCIe lanes), the chipset, and connectors that enable data and control signals to flow among components. This matches the motherboard’s principal job.
- Options a, c, d describe roles of other components:
  - a: “a type of non-volatile memory” — non-volatile memory includes SSDs, HDDs, flash, ROM. The motherboard is not itself a storage medium (though it may include a small ROM/BIOS chip).
  - c: “stores data” — storage is performed by drives and memory modules (RAM/ROM). The motherboard hosts slots and connectors but does not primarily store user data.
  - d: “processes instructions” — processing is done by the CPU (and GPUs for certain tasks). The motherboard provides the CPU’s sockets and pathways but does not execute instructions.

3) Conclusion
Because the motherboard’s central purpose is to connect and enable communication between hardware components via buses, connectors and chipset logic, option b is correct. This matches the provided answer: b.

A motherboard单项选择题

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