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maveric_gamer t1_je1uwub wrote

At the absolute lowest level, it's built into the architecture of the system - when we say a "32-bit" or "64-bit" processor or architecture, what we are saying is that the native instruction set is encoded in that number of bits, with a bit being a discrete 1 or 0 - in other data sets that don't need that much, we will have code that defines the length of a piece of data.