SSD
Hard disk drive
Hybrid hard disk drive
SCSI
Optical disk
Magnetic disk
Magneto-optical disk
Opto mechanic disk
Semi conductor memory
Magnetic disks
Compact disks
Magnetic taps
Secondary memory
Tertiary memory
Primary memory
Cache memory
Critical Disk-Read Only Memory
Compact Disk- Random Only Memory
Critical Disk-Radius Only Memory
Compact Disk-Read Only Memory