Does dimming,or turning down the light on your computer screen save your battery?

okay so on the screen thing I presed the button to make the screen light go down, well I turned it to where it's kind of dar...

my computer screen is turned to the side and I need help_ it will not go the other way and I dont know how to start it in saf...

What's wrong with my computer everytime I turn it off n turn it back on the screen goes black, how can I fick it?

My computer screen turned around, upside down, how do I get it back to normal?

My computer turns on, but it just lights on but the screen is complitly black and it does not do anathing after I turn it on?...

how do I make my computer screen smaller so I can see everything on it

When ever I turn on my brothers computer it says 'In power save mode' no buttons I press undo it - that I know of- ANy Ideas ...

Is there any device to shield a computer screen so I can work outside in the sun and still work on my computer?

I've heard computer screens are damaging to the eyes, is that true? and if so is there anything to do about it?

I received a Flip Video as an attachment to an email and I want to save it to my computer. But it is only a link so it won't ...