helpful if you are interested in computers
Its a fan put inside a computer used for cooling down the device.
A floppy disk is a disk storage medium composed of a disk of thin and flexible magnetic storage, sealed in a rectangular plastic carrier lined with fabric that removes dust particles.
A heat sink is a passive heat exchanger that cools a device by dissipating heat into the surrounding medium.
A hard disk drive is a data storage device used for storing and retrieving digital information using rapidly rotating disks coated with magnetic material.
an optical disc drive is a disc drive that uses laser light or electromagnetic waves within or near the visible light spectrum as part of the process of reading or writing data to or from optical discs.