A device is any piece of equipment attached to a network, such as a computer, printer, modem, or any other peripheral equipment.
Although a device may be installed on your computer, Windows cannot recognize the device until you install and configure the appropriate driver. A device driver enables a specific piece of hardware to communicate with the operating system.
DRA allows you to configure and manage the devices only on the computers in the managed domains. The access account must have administrator permissions, such as being a member of the local Administrators group, on all computers where you want to manage devices. To assign these permissions, add the access account to the native Domain Admins group in the domain of the computer.