I had MK-61 one (like MK52, but without the ROM bank) as a kid and used it to learn programming. You can do amazing things with just 105 bytes of RAM, like pla

I had MK-61 one (like MK52, but without the ROM bank) as a kid and used it to learn programming. You can do amazing things with just 105 bytes of RAM, like playing real-time games using DEG-GRAD-RAD switch as a joystick, for example.