I never really use the laptop away from my desk so it’s usually kept plugged in, does this ruin the internal battery power?Is it bad to constantly leave your laptop plugged in?The video card makes sure you get the image towards the screen. It may possibly be considered an output component and on the horizon . to those that want serious lifelike graphics displayed onto their computer screens. With regular everyday use laptops, you often will get away with a built-in graphics card (it’s built-into the motherboard, mind you) which uses the available RAM to try.