<P> Scroll lock (⤓ or ⇳) is a lock key (typically with an associated status light) on most IBM - compatible computer keyboards . </P> <P> Depending on the operating system, it may be used for different purposes and applications may assign functions to the key or change their behaviour depending on its toggling state . </P> <P> The key is not frequently used, and therefore some reduced or specialized keyboards lack Scroll Lock altogether . </P>

What is use of scroll lock in keyboard in hindi