Which system component acts as an intermediary buffer, allowing slow peripheral storage devices like hard drives to communicate efficiently with the CPU? MCQ with Answer and Explanation
Which system component acts as an intermediary buffer, allowing slow peripheral storage devices like hard drives to communicate efficiently with the CPU?
A. Accumulator
B. L1 Cache
C. Instruction Register
D. Disk Buffer / Cache Memory
Answer: Option D
Solution (By JKSSB Mock Tests)
Disk buffers built into drives act as localized memory arrays to cache data temporarily, preventing slow mechanical read speeds from bottlenecking system processes.
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:
Registers are the smallest and fastest memory inside the CPU. L1 cache is also inside but registers are even faster and directly used by the ALU.
Explanation:
A cylinder consists of the same track number on each platter in a hard disk drive, all at the same distance from the center. This allows the heads to access data without moving.
No comments yet. Be the first to start the discussion!