A Single In-line Memory Module (SIMM) is a type of memory module containing Random Access Memory (RAM) which was used ... to the Atmega328p-based Arduino UNO in order to gain some memory space.

the Stack is always internal to the Arduino Processor. – 1,024KB RAM accessible as 8KB selectable pages(128) in 6 memory mapped panes(0x4000..0xFFFF). A ‘default’ pane 0x2200..0x3FFF may ...

an x86 Vortex86EX processor running at 300 MHz. This board also features 128 MB of RAM, 8MB of Flash and the usual compliment of Arduino pins in a Leonardo-compatible layout. Also on the SoC is a ...