What is the purpose of a hard disk's actuator arm? MCQ with Answer and Explanation

Explanation:
The MMU is a hardware component that translates virtual memory addresses used by the CPU into physical addresses in RAM, enabling virtual memory and protection.

Explanation:
DDR4 common CAS latencies are around 14-16, though higher speeds may have CL18-22. DDR3 had CL9-11. DDR5 is higher (CL30+). So A is correct for typical DDR4.

Explanation:
Memory banks in DRAM allow concurrent access to different banks, increasing parallelism and throughput.