There are different ways to change the screen brightness, but the easiest way is to use the function keys. PCs of different brands have different function keys to control screen brightness. In this ...

A set of keyboard keys from F1 to F12 that are programmed by the operating system or application to perform some task. The function key can be used alone or in combination with Shift, Control and Alt ...

I have a Toshiba laptop, about 3 years old. I had some work done on it and when I got it back, the function FN key which works with certain commands on the pf keys would not work. Now I cannot change ...