How to take a screenshot?

→ PC

1. To take a picture of the whole screen: press Print Screen (often shortened to PrtScn or PrtScn) key, then start Paint, paste it and save.
2. To take a picture of the active window: press Alt + Print Screen
   
3. Use the snipping tool to select the area you would like to screenshot, and it will save to your desktop

→ Mac

1. Command Shift 4: take a screenshot of user-selected area
2. Command Shift 3: take a screenshot of your entire screen
3. The picture will save to your desktop

→ Android Phone & Tablet

1. To take a screenshot, press and hold the power and “volume down” buttons together.
2. Also, click the power button and click “take a screenshot” in the power options menu.

→ iPhone & iPad

1. Press and hold the off button and the home button
2. Will take a picture of the whole screen and then save to your photos