The light on the front of your computer is flickering each time your hard drive is in use. It does not matter if you are not currently doing anything the hard drive may be saving data that was in RAM.
Your battery is slowly dying.
battery light flashing means the battery is not charging,check alternator fuel light flashing means very low or almost out of fuel.
A flashing (blinking on and off) orange light indicates that the battery charge is low.
your battery is dying or is dead
A flashing amber light means approach the lock at a safe speed and under full control.
Cowen
It means it is almost outa' battery.
The flashing light on the charger of a Ryobi trimmer typically indicates that the battery is charging. If the light is flashing rapidly, it may signal an error or that the battery is too hot or too cold to charge. If the light is flashing inconsistently or does not change to a steady light, it could indicate a problem with the battery or charger. Always refer to the user manual for specific troubleshooting information.
Its when your computer is processing data. Some of the new computers have different color lights now that are flashing my dell has a green one. But its just flashing when it thinks and processes information through CPU the faster if flashes and longer the harder your computer is thinking
check the radiator. ;)
It is likely that your battery is dead.
If they have a green flashing light on top of their car, then they are a Doctor, and have as much priority as a regular emergency vehicle.