Your old 32-bit CPU, could address up to 2^32 memory addresses, that’s 4294967296 different memory addresses, better said, “only” 4GB, something that 15 to 20 years ago was 1000 larger than any memory created at the time. Now we have 64-bit CPUs, that means they can address up to 2^64, that’s 18446744073709551616 different memory addresses, […]