For major computer subsystems, a graphical file manager is a front end to the computer's file system, and a shell interfaces the operating system--the front end faces the user and the back end launches the programs of the operating system in response.
A graphical file manager is a front end to the computer's file system. This is for major computer subsystems. A shell interfaces the operating system. This is for major computer subsystems. The front end faces. This is for major computer subsystems. The user launches the programs of the operating system in response. The back end launches the programs of the operating system in response.