What is the function of a memory controller in a modern CPU?
A. To execute instructions
B. To manage memory timings and data flow
C. To manage cache
D. To handle I/O operations
Answer: Option B
Solution (By JKSSB Mock Tests)
The memory controller in modern CPUs handles the interface with RAM, including address decoding, command generation, and data transfer, optimizing memory performance.
Explanation:
As of 2026, 3.5-inch HDDs commonly range from 1 TB to 8 TB, with higher capacities available (e.g., 10-20 TB) but 1-8 TB is typical for consumer drives.
Explanation:
A buffer (or disk cache) in a hard disk is a small amount of RAM used to temporarily hold data being read from or written to the disk, improving performance by reducing access time.
Explanation:
The memory hierarchy is designed to provide a trade-off between speed (fast but expensive) and capacity (slow but cheap), optimizing overall system performance and cost.
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