Suppose you have the new Zarnex VQ-120 computer which has a 64-bit architecture.

Question

Suppose you have the new Zarnex VQ-120 computer which has a 64-bit architecture. Further, the boss has told you to "max out the memory," which, on that machine, means you can install all the memory the architecture supports: how many bytes is that? At contemporary memory pricing of $7/GB, how much will it cost to fill the machine? Knowing what you know about virtual memory, how much will it cost to provide disk space only for paging if you run Windows on this machine? if you run linux on it? (use a price of S35/TB for disk pricing). Remember to include correct units on all your results - the result isn't completely correct without them.

Explanation / Answer

Computer having 64-bit architecture having, 64-bit CPU, And it can address 2^64 bytes or you can say that

2^64 bytes = 16 exabytes = 16 * 1073741824 = 17179869184 GB

1 GB = $7

then 17179869184 GB = $120259084288

Virtual Memory: Its a memory management technique which helps in executing large programs. Large programs that are larger than the physical memory. Its a seperate memory from physical memory. We can use concept of virtual memory where very less physical memory is available.

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