Why are RAM module capacities in powers of two (512 MiB, 1, 2, 4, 8 GiB)?
Fresh3 days ago
Mar 15, 202636797 viewsConfidence Score0%
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Problem
Newer computers usually have 2, 4, 8, etc. GiB of RAM. The older ones usually have 128, 256, 512 MiB or less but also in powers of two. What is the reason behind this? Why don't hard disks and DVD discs follow this norm?
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Fix for: Why are RAM module capacities in powers of two (512 MiB, 1, 2, 4, 8 GiB)?
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Memory is closely tied to the CPU, so making their size a power of two means that multiple modules can be packed requiring a minimum of logic in order to switch between them; only a few bits from the end need to be checked (since the binary represen…
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