Insert Disk

When I was a really little kid, I used to pretend that crackers were floppy disks when I put them in my mouth. There isn't much more to where this idea came from than that.

("Floppy disks" were an early form of storage media used by computers to store files on, much like external hard drives are used today. They were thin and flexible, hence the name "floppy".)

Google it.