The Dock, Launchpad, and Mission Control
Two of the most useful features in OS X are the Dock and Launchpad. You'll use these features to open your apps and files, as well as to customize your desktop so your favorite items are easy to access. The Dock is available in all versions of OS X, but Launchpad was introduced in Lion.
Watch the video to learn how to use and customize the Dock and Launchpad.
The Dock houses shortcuts to your favorite apps, files, and folders, as well as the Trash. You can customize the Dock by reorganizing it, adding or deleting items, and changing settings.
The Dock contains a divider that looks like a solid line. Everything to the left of the divider is an app, and everything to the right is a file or folder. You'll need to keep this in mind when you reorganize the Dock.
Everything on the Dock is a shortcut, so you won't delete anything by removing it from the Dock.
When you view a folder on the Dock, you may notice that it looks a little bit different from a normal folder. This is because the Dock uses a feature called Stacks, which displays folder contents as a Fan, Grid, or List. Because Stacks are accessible directly from the Dock, they make it easier to open your important files.