To set this preference, select System Preferences from the Apple menu, then Appearance, and check the box next to Minimize when double clicking a window title bar. You can change your preferences so that double-clicking on the toolbar minimizes the open window to the dock. On the upper right corner of the title bar is a small button that allows you to switch between the OS X window style and the Classic window style, which lacks the side bar, the toolbar, and the status bar. To resize a window, all you need to do is drag from the lower right-hand corner (where you will see a series of lines in the shape of a triangle). When you click on it after resizing a window, it will return you to the previous size. The maximize button also toggles between window sizes. The green button (it will have a plus sign when you hover over it) can be used to maximize a window to be as large as it needs to be to show all of its contents. The red button (which will have an x when you hover over it) can be used to close a window, while the middle yellow button (which will have a minus sign when you hover over it) can be used to minimize a window to the dock. The Title Bar: shows you the name of the folder you are currently in, as well as some buttons located on the upper left corner that can be used to work with open windows.The Finder interface has several parts to it: The Finder is always running in the background (its icon on the dock will always have a small triangle underneath it to let you know the application is running), and it is the active program any time you click on the desktop. The Finder can be used to navigate your hard drive and display the contents of the folders and subfolders you use to organize your files on your hard drive. The Finder is the file management application on the Mac.

File explorer on a mac