what are hertz?

[quest1on]

in my video card options mine is set to 60 hertz and it can go to 200 hertz and as low as 43 hertz what do these do?

 

[Trifid]

Come on Lower High school knowledge here.

Hertz are the amount of cycles or refreshes a second.

It is the amount of frames the screen is displaying a second.If you have a LCD then set it to 60. If you have a CRT set it to the highest your monitor supports.

 

[The General]

Hertz = cycles per second
Megahertz = 1,000's cycles per second
Gigahertz = 1,000,000's cycles per second
Terahertz = 1,000,000,000's cycles per second