Question 38

Read-only memory (ROM) stores instructions for critical system activities.

Read-only memory (ROM) is the hardware component specifically designed to store firmware and essential instructions required for booting up the system and managing critical tasks. Its non-volatile nature ensures that these instructions are retained even when the power is turned off.

A) Read-only memory (ROM)

Option A is the correct answer as ROM is specifically used to store firmware and critical system instructions that are necessary for the initial boot-up of a computer and other essential operations. Unlike other types of memory, ROM retains its contents even without power, making it essential for keeping vital instructions intact.

B) Central processing unit (CPU)

Option B is incorrect because the CPU is the primary processing unit that executes instructions but does not store them. Instead, it relies on memory components like ROM and RAM to access the instructions needed for processing tasks.

C) Random-access memory (RAM)

Option C is also incorrect as RAM is used for temporary data storage while the computer is running. It holds data and instructions that the CPU needs in real-time but does not store critical system instructions permanently, as RAM is volatile and loses its data when the power is turned off.

D) Graphics processing unit (GPU)

Option D is incorrect as the GPU is designed primarily for rendering images and video processing. While it may have its own memory, it does not store critical system instructions for the overall operation of the computer.

Conclusion

In conclusion, Read-only memory (ROM) is definitively the correct answer as it fulfills the role of storing essential instructions for system activities, unlike the CPU, RAM, and GPU, which either process data or store temporary information. ROM's ability to retain critical instructions permanently makes it vital for system functionality.