From the user's perspective when switch on the phone, I see two boot animations in my LG P500 running CM10. The first animation is from LG and the second animation is from CM10. Then it settles in with a locked screen ready for my input.
Can someone knowledgeable (and kind) enough explain the what happens behind the scene (screen) during a boot process when an android device is switched on? It will be helpful if the answers can help a non geek to understand various process and jargons (like, fastboot, bootloader, recovery, if applicable etc) regarding boot sequence.