Digital Electronics - Memory and Storage - Discussion

Discussion Forum : Memory and Storage - Filling the Blanks (Q.No. 11)
11.
The number of 16k × 4 memories needed to construct a 128k × 8 memory is ________.
4
8
12
16
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
4 comments Page 1 of 1.

Jerry said:   8 years ago
Given in the question that 16*4 memory is used to construct. We know that 16*4=64 and 128*8=1024. Now the question is how many 64k is required to built 1024k. So the simpler way is finding the number which on multiplication with 64 gives 1024.

It is 16. 16*64=1024. So the answer is 16.

Sid said:   9 years ago
Please give the clear description for this.

Sumit gogna said:   1 decade ago
Here 16k represents the address lines and 4 represents data lines. And thus the memory size will be 16*4 = 64k.

Similarly required memory size is 128*8 = 1024k.

Now 64k * 16 = 1024k = required memory size. Hence 16.

Prema said:   1 decade ago
I cannot understand this please tell the description clearly.

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