Many applications process data in 32-bit blocks ... SRAM is the high-speed memory in which a chip stores data immediately before processing it. Arduino has also upgraded the onboard flash storage ...

[Design Build Destroy] didn’t really add any memory to his Arduino Nano ... the bootloader is set to use a large block of reserved memory, but Optiboot only requires a fraction of that reserved ...

If you ever wanted to have a computer with real core memory you can get a board that plugs into an Arduino and provides it with a 32-bit core storage. Of course, the Arduino can’t directly run ...