Laptops and netbooks should have a dedicated Fn key combination or utility from the manufacturer for brightness.
An old Dell Studio One 1909 desktop we have here, is one such system without external controls for brightness and contrast. Most monitors should have controls to adjust these types of settings but that isn’t always the case. Proper configuration can make viewing more comfortable, especially you are at your computer for prolonged periods of time. It doesn’t take a lot for a badly configured monitor or laptop screen to cause problems and put extra strain on your eyes because brightness or contrast settings are set too high.
One of the most obvious things that can show the strain of being at your computer for a period of time is your eyes.
