Program Manager :
this allows users to execute each program on their computer
File Manager :
The Microsoft Windows File Manager is the graphical user interface (GUI) through which end users could see and manipulate files and folders on early-version Windows computers.
Control Panel :
The Control Panel is a section of Microsoft Windows that enables a user to change various computer hardware and software features. Settings for the mouse, display, sound, network, and keyboard represent a few examples of what may be modified in the Control Panel
