Taskbars

A taskbar is a graphical user interface element used by many operating systems to provide quick access to running applications and system controls. It typically presents a central area with buttons for open windows and a launcher area for frequently used programs, along with a system tray that shows status icons such as network, volume, and clock.

The exact appearance and behavior vary by environment, but common features include a Start button or app menu; a row of icons or buttons representing open applications; optional pins or shortcuts to frequently used programs; and a notification area with the clock and status indicators. Some taskbars also include toolbars, search boxes, or calendar displays.

In Windows, the taskbar is usually docked along the bottom edge of the screen and supports features such as grouping of similar windows, thumbnail previews, and jump lists. macOS uses a Dock with similar purposes but is separate from the window management workflow; in Linux and other Unix-like desktops, panels or taskbars are provided by environments such as GNOME, KDE, and Xfce and can be placed on any screen edge and configured extensively.

Users can customize placement (bottom, top, sides), auto-hide behavior, icon size, and which elements appear. Many taskbars support multiple monitor setups, allowing a primary taskbar on one screen and additional taskbars on others. They also offer accessibility options and keyboard shortcuts to switch between tasks or launch programs.

The concept emerged with graphical user interfaces in the late 20th century and remains a core component of modern desktop environments, evolving with features like thumbnail previews, touch-friendly interfaces, and enhanced notification areas.