The camera is broken and the memory card is lost. I heard that there is a hard disk in the camera to store data. Is it true?/You don't say. Can you still find the data in the camera?

According to the model of your camera, just look up the parameters online.

If it is a hard disk camera, there is a hard disk in the camera, which replaces the previous tape or CD as the storage medium. Many models of cameras also have flash memory card slots, and the captured video can be recorded on hard disk or card.

So, the machine dropped, as long as the hard disk is not broken, the data inside should still be there.