B. To store frequently used data for faster access
C. To temporarily hold data during read/write operations to smooth data flow
D. To increase the disk's capacity
Answer: Option C
Solution (By JKSSB Mock Tests)
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 Controller Hub (Northbridge) traditionally connects the CPU to memory and high-speed graphics. In modern CPUs, the memory controller is integrated.
Explanation:
The memory hierarchy from fastest to slowest is typically: Registers (fastest), then Cache, then RAM (main memory), then secondary storage like Hard disk (slowest).
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