In order to avoid these problems, it is recommended to uninstall apps from Mac OS X using app uninstaller or software removers. This results in waste of storage space and may reduced speed for your Macbook / iMac mini.
However, not all files related to an app are deleted or removed when you uninstall an app. Mac OS X is very neat when it comes to uninstalling or removing apps – Simply dragging an app icon to trash bin icon uninstalls the app.
