Questions about laptop screens

First of all, I've heard a lot of people use the term "native resolution". What does that mean ?
Is the Sager NP5793 "17" WUXGA "Glare Type" Super Clear Ultra Bright Glossy Screen (1920x1200)" screen good for gaming ?
Does this mean 1920x1200 is it's native resolution ?
It CAN be lowered, right ?

 

Native resolution is the actual number of pixels available on the panel. For example, a panel can have 800 horizontal pixels and 600 vertical pixels. The native resolution of that panel would then be 800x600, and it will look its best when run at 800x600. However, the panel will support lower resolutions, such as 640x480, although it won't look as good.

A screen with a high native resolution of 1920x1200 isn't ideal for gaming. The reason is because in order for the game to look its best, it's necessary to run it at the native resolution. But, 1920x1200 is high, so it will be more taxing on your hardware.
This means that more demanding games will have to be played at lower resolution, such as 1280x800, but then the game won't look as good as it would when played on a screen with a native 1280x800 resolution. Therefore, you lose out on visuals.

 

Thanks for the info. My hunch was right. So the 1920x1200 is native. And yea, I'm used to playing at lower than native resolutions, so it's fine. And the sager has a 8800M GTX anyway