anything with a CPU in it
If we count microcontroller as CPUs, that would include basically anything that runs with electricity. But I like that thought even more that way
Microcontrollers would be included in this. Also, not everything that runs on electricity needs to have a microprocessor in it, like toasters for example.
Yeah, not everything needs to have a microprocessor in it, but only few items of those do really have none
I’m no expert so asking with curiosity, but wouldn’t even simple things like your coffee machine changing lights when the coffee is ready require (a very simple) one?
To be fair, compliance with that in those cases might be easier. In my experience most washing machines, for example, have programming headers near their main microcontrollers, and you absolutely could write your own firmware for them. Occasionally they’ve been locked down and require an exploit to reprogram (looking at you, Nordic!) but in many cases putting your own code on is as simple as looking up the part number and buying an appropriate JTAG cable. Working out how it’s all connected inside is slightly harder, however.
