The video shows a close-up of a hard drive, which is a device used to store data on a computer. The hard drive is spinning, and the camera pans around it to show different angles. The hard drive is made up of a circular disk that spins at a high speed, and a read/write head that moves across the disk to read and write data. The disk is made of a reflective material that shines when the light hits it. The read/write head is a small, delicate piece of equipment that is attached to a moving arm that allows it to move across the disk. The hard drive is housed in a metal case that protects it from damage. The video provides a detailed look at the inner workings of the hard drive and how it operates.