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

Devices such as routers store their firmware and your settings in a chip called a flash. Whem ylu press the reset button, it tells the firmware to copy the dedault settings from the firmware into the user settings portion of flash, thus performing a factory reset.

This is different from the reset button on computers (not very common anymore) that just restarts the system with a dedicated reset signal.