Why we don’t have 128 bit OS or CPUs?
In: 927
Because we don’t need it yet.
Imagine you want to give a number to all flats in an apartment building. If there are less than 10 flats, you can number them 0-9, which is 1 digit.
If your apartment building is large, you may need 2 digits. You’ll get 00-99.
If it’s a skyscraper, you’ll probably need 3 digits: 000-999.
But, assume you need to give a number to all houses in the US. How many digits will you need? We have about 350 million people, we definitely have less than a billion houses. You can use 9 digits, so 0-999,999,999. As you can see, you don’t need more than 9 digits.
It’s similar with the 64 and 128 bit namespaces. 64 bits could theoretically manage 18 quintillion bytes of RAM, which is about 18,000 Terabytes if my math is correct.
Wikipedia article > https://en.m.wikipedia.org/wiki/128-bit_computing
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