Windows 7 includes applications like Device Manager and the Devices and Printers applet to help ensure that your hardware is properly installed. Malfunctioning hardware can really be a hassle to fix. It's important that your system hardware is properly installed and configured. They all come together to provide a total management solution for your Windows 7 system.
Each of these management tools provides a different function. There is Control Panel, the MMC, the Computer Management Console, the Local Group Policy Editor, and the Windows Registry. Windows 7 includes a variety of local management tools. Jorge Orchilles, in Microsoft Windows 7 Administrator's Reference, 2010 Summary