Electronics and Communication Engineering - Digital Electronics - Discussion

Discussion Forum : Digital Electronics - Section 1 (Q.No. 16)
16.
The access time of a word in 4 MB main memory is 100 ms. The access time of a word in a 32 kb data cache memory is 10 ns. The average data cache bit ratio is 0.95. The efficiency of memory access time is
9.5 ns
14.5 ns
20 ns
95 ns
Answer: Option
Explanation:

Access time = 0.95 x 10 + 0.05 x 100.

Discussion:
34 comments Page 2 of 4.

Kokila said:   9 years ago
I need clear explanation, please elaborate the solution.

Tejas said:   1 decade ago
@ Sateesh.

I could not understand, how you calculated?

Ramesh said:   10 years ago
If anyone knows clear explanation then please explain.

Dheeraja said:   1 decade ago
How to taken 0.05 & what formula will be applied?

Ali Muhammad said:   5 years ago
You explained in a good manner. Thank you @ Bikram.

Jhklhlkhkgku said:   1 decade ago
What about the 100 ms which has converted in ns?

Baishali said:   1 decade ago
Please give a proper explanation for the result.

Heena said:   8 years ago
How do we get 0.05 hit rate from main memory?

S.ROHINI said:   9 years ago
Please mention the formula and explanation.

Surya said:   9 years ago
Thank you all for explaining the solution.


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