A random-access data storage device which gives rapid access to data is

A random-access data storage device which gives rapid access to data is Disk storage unit. A disk drive is a device implementing such a storage mechanism. Notable types are the hard disk drive (HDD) containing a non-removable disk, the floppy disk drive (FDD) and its removable floppy disk, and various optical disc drives (ODD) and associated optical disc media.