The Floppy.BackingType enumerated type defines the valid backing types for a virtual floppy drive.
IMAGE_FILE : Virtual floppy drive is backed by an image file.
HOST_DEVICE : Virtual floppy drive is backed by a device on the host where the virtual machine is running.
CLIENT_DEVICE : Virtual floppy drive is backed by a device on the client that is connected to the virtual machine console.
Enumeration: CLIENT_DEVICE, HOST_DEVICE, IMAGE_FILE,