On the tablet computer (tab) or smartphone a lot of applications to do screenshots of thescreen or capture or grab, (the term is a lot, meaning it-that's it, capturing the look of the screen and then make it as an image file).
But actually we can also do the screenshot without having to install additional app. ie by using an existing key combination.
On Android, be it a tablet computer or smartphone to do the screenshot / capture / grab is by pressing the Power button combination and Volume min (button to shrink the sound).
• Press the power button and the V olume min button simultaneously.
The capture file will be automatically saved in the Pictures \ screenshot folder.
