Workbench is the desktop environment and graphical file manager of AmigaOS developed by Commodore International for their Amiga line of computers. Workbench provides the user with a graphical interface to work with file systems and launch applications. It uses a workbench metaphor for representing file system organisation.
"Workbench" was also the name originally given to the entire Amiga operating system up until version 3.1. From Wikipedia
