They serve three main purposes:
Arthur had to download a massive database update. In the old days, this would be a giant progress bar floating on his desktop, mocking him, making him watch the seconds tick by. But Arthur had mastered the art of concealment. He clicked 'Hide.' The massive window collapsed into a tiny arrow icon in the Tray. what is a tray icon
Go to System Settings > General > Login Items and remove the unwanted applications from the list. They serve three main purposes: Arthur had to