How does the power button work

  1. I understand what to do to make it work
  2. I want to know what happens when you turn it on that transfer the power from one point to the other
crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0