Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In computing, taskbar is a desktop display bar used to launch and monitor applications. Microsoft incorporated a taskbar in Windows 95 and it has been a defining aspect of Microsoft Windows''s graphical user interface ever since. Other desktop environments, such as KDE and GNOME, also include a taskbar. Other operating systems use terms such as Panel or Dock. The default settings for the taskbar in Microsoft Windows place it at screen bottom and includes from left to right the Start menu button, Quick Launch bar, taskbar buttons, and notification area. The Quick Launch toolbar was added with the Internet Explorer 4 shell update, and is not enabled by default in Windows XP Home Edition or Windows 7.