"i don't do \"computing\" with them"
but you can do computing with them as they are computers technically and
practically
someone got unix to run on the GBA!(non-free but with src):
http://www.kernelthread.com/publications/gbaunix/
and there was a BASIC Interpreter for the Atari 2600:
https://www.youtube.com/watch?v=RP1M2bgsSWg
and a home-brew basic interpreter for the Gameboy:
http://www.devrs.com/gb/files/gbb210.zip
I think if its possible to make my floppy drive controller run a space
invaders clone then the owner should beadle to do so!
and the same gose for microwaves, toasters, games consoles, Punch Card
Controllers, Digital Radios, SD cards etc