There is not an application like Windows Device Manager Ubuntu. Gnome-Device-Manager is the Ubuntu equivalent for the Windows Device Manager application. it's not installed by default. Gnome Device Manager is a front-end, or GUI, to the HAL daemon service. HAL continuously polls the system message flow or "desktop bus," which is also known as "D-Bus.", D-Bus listen for messages about hardware events from the Linux kernel. Example , that a pendrive has been inserted.