In some electronic devices that have a dedicated reset button in them, how does pressing it actually reset the whole device?

Question

In some electronic devices that have a dedicated reset button in them, how does pressing it actually reset the whole device?

In: 22

Answer 1

So as well as the CPU reset on complex devices that other posters mentioned, some simple battery powdered devices will just have a little push switch that interrupts the battery power line, doing the same thing as disconnecting the battery without having to open the device.

Many laptops (now that removable batteries basically don’t exist any more) actually have a little button on the bottom that does this to recover from any hard crash that prevents the software reboot from working.