What is the PrtScn on the Keyboard for?

PrtScn is a key on the keyboard to take a screenshot on the computer screen.

It is a key used to take a screen shot from computer 

to caputre picture that seen in  desktop screen, that can be paste any editior, and save. as primary it save to clipboard of editor

It suppose to be for Print Screen.

On the cellphone, would be screen grab.

it is print screen a key that takes a screen shot of your screen

To get the screen shot of the current desktop or server (putty) window

Is akey to take screen shoot of the labtop or pc screen

To take screen shot of screen.

It is a button in the keyboard that is used to take a screenshot for the current view of the screen and save it if you want for example use paint program to put the screen by pressing ctrl+v and save it as Jpeg file.