27. Which of the following types of bus can connect hard disk drives with the motherboard?

Answer: D

Explanation:

The SATA bus can connect hard disk drives with the motherboard.

The SATA bus (Serial Advanced Technology Attachment) is specifically designed to connect hard disk drives and solid-state drives to the motherboard, facilitating data transfer between these components.

A) The RAM bus

The RAM bus is used to connect the computer's RAM (Random Access Memory) to the motherboard. It is not designed for connecting hard disk drives; instead, it serves a different purpose related to memory access and data storage during computation.

B) The NUMA bus

The NUMA (Non-Uniform Memory Access) bus is utilized in systems with multiple processors to manage memory access efficiently. It does not facilitate the connection of hard disk drives to the motherboard, making it irrelevant in the context of this question.

C) The CPU bus

The CPU bus connects the central processing unit to other components of the computer, such as memory and peripheral devices. While it plays a critical role in data transfer within the system, it does not specifically connect hard disk drives to the motherboard.

D) The SATA bus

The SATA bus is the correct choice as it is purpose-built for connecting hard disk drives and SSDs to the motherboard, allowing for high-speed data transfer essential for storage devices.

E) The Auto bus

The Auto bus does not correspond to any standard bus type used in computer architecture for connecting hard disk drives with the motherboard. It is not recognized in the context of connection interfaces for storage devices.

Conclusion

The SATA bus is the only option that directly addresses the question of connecting hard disk drives to the motherboard, making it the definitive correct answer. Other options either serve different functions or are not applicable, highlighting the specificity of the SATA bus in storage connectivity.