To uninstall an application on an iMac computer, run its uninstallation software, drag the application to the Trash, or click the X mark on the app's icon in Launchpad. The appropriate uninstallation procedure depends on how the application was installed.
Larger, more complex applications, such as Adobe Photoshop, that require installation software to install usually also require you to use special software to uninstall. The uninstallation software comes bundled with such products and is designed to ensure complete removal of the application and its components during uninstallation.
Users can typically find the uninstaller, if included with an application, in the same folder in Applications that the program's icon is located in. Some products, on the other hand, add their uninstallers to the Utilities folder in Applications. If you find an uninstaller for the application you want to remove in either of these locations, run it and follow the instructions on the screen to complete the uninstallation process.
In most circumstances, however, dragging the icon you use to start the program to the Trash is enough to uninstall it. After emptying the Trash by using Finder and selecting the Empty Trash option, the application you dragged to the Trash folder should be completely removed.
To uninstall applications downloaded from the Mac App Store, first open Launchpad. In the Launchpad window, click and hold the icon of the application you want to uninstall until all the icons start to jiggle. Click the X button on the appropriate application to remove it.