Some functions are carried out by keyboard keys combination like ‘Ctrl + Alt + Delete’ (the most famous keyboard combination ever!), some are carried out by a devoted keyboard button like the ‘Print Screen’ key.
https://secure.assets.tumblr.com/post.jsBy learning to use the key, you can easily take a screenshot of your desktop. This function is often helpful while recording errors on Windows and other operating systems. It can also be helpful when saving a webpage snapshot as a record.