In this Computers & Programming video tutorial you will learn how to use Mac's zoom button. Most of the new users of Mac think the small green button on top left corner of a window is to maximize the window to the full screen. But, in Mac there is no maximize button. This button is called the zoom button. What this button does is to maximize the window to fit the content rather than the full screen. If you go full screen, what you will get is extra white space. There is no short cut key for this. Another way of doing this is to click on 'window' and select 'zoom'. You will get the same effect. That's it!