tool bar

In a graphical user interface on a computer monitor a toolbar is a row, column, or block of onscreen buttons or icons that, when clicked, activate certain functions of the program. Earlier forms of toolbars were defined by the programmer and had set functions. Most modern programs and operating systems however, allow the end user to modify and customize toolbars to fit their personal needs. A prominent example of a customizable toolbar is the Microsoft Windows Taskbar; functions of which range from an expandable programs menu, task listing, system tray and clock.
See more at Wikipedia.org...