A computer has a main memory with a capacity of 16 MB and a cache with a…
2024
A computer has a main memory with a capacity of 16 MB and a cache with a capacity of 4 KB. If the cache block size is 32 bytes, how many cache blocks can fit in the main memory ?
- A.
432,000 blocks
- B.
524,288 blocks
- C.
325,008 blocks
- D.
None of these
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Correct answer: B
To find the number of cache blocks in main memory, divide total main memory size by block size. Convert 16 MB to bytes: 16 × 2²⁰ = 16,777,216 bytes. Convert block size to bytes: 32 bytes. Divide memory by block size: 16,777,216 ÷ 32 = 524,288 blocks. Therefore, main memory can hold 524,288 cache blocks.