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The other part tells us that it’s a machine code program meant to run on a 64-bit x86 processor, which is the CPU architecture that has been used in PCs since the introduction of the IBM PC in 1981. The ability to do that is reserved for the kernel, the part of the operating system that controls and shares access to IO devices, memory, and CPU time. So, modern software systems on today’s hardware are so complex and intricate that it really makes no sense to try and fully understand one little thing that your computer did.
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