Which of the following is a type of memory that is directly connected to the CPU without a bus?
A. RAM
B. Hard disk
C. Cache
D. Registers
Answer: Option D
Solution (By JKSSB Mock Tests)
Registers are internal to the CPU and are directly connected to the execution units, providing the fastest access. Cache is on-chip but may have a bus; RAM and HDD are external.
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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