Diff b/w 32 bit and 64 bit OS?

Question

hi guys can u please tell in detail in the diff b/w 32 and 64 bit OS...plz tel in technical details....and has it something to do with the accumulator size of the processor?

Answer 1

As the name suggests, 32 bit OS is designed to run on a 32 bit processor and cannot run 64 bit instructions and also does not have the capability to access memory address spaces beyond the 32 bit memory address 2^32.

64 bit OS run on 64 bit memory address space, and has access to 64 bit registers of the processor and also allows the execution of 64 bit instructions.