the GUI
Wallpaper
Start Menu
quick access toolbar
Quick Access Toolbar
Yes. It does.
It contains the save, undo, redo commands initially, but it can be customised so that you can have what you want on it.
taskbar
It depends on the Unix vendor. For example, in HPUX you will find them in the section 1m area.
The _____ provides easy access to frequently used commands
hg
Icons are used to access files and programs on the computer.
+all programs command
256