Evolution to consciousness

Needed to be capable of changing Needed to perceive information Needed to store information Needed to process information  Needed...

Needed to be capable of changing
Needed to perceive information
Needed to store information

Needed to process information 

Needed to specialize information
Needed to distinguish between favorable and unfavorable information
Needed to be capable of having inner states
Needed to be capable of differentiating between states
Needed to have feelings
Needed to be the feeling become a global feedback
And the consciousness evolved