Hard drives are non-volatile, as you don't lose the data stored within if you turn off the power to them.
No, they are permanent storage devices, only RAM is volatile storage device.
Hard drives are not volatile storage devices, because the information within them is not lost when the drive loses power.
I believe that you mean to ask if hard disk drives are considered volatile storage media or not. Volatile memory is memory that is lost when the storage medium is not being supplied with electricity. Hard drives do not need power for storage, only for reading and writing data from and to the platters; this means that hard drives are not volatile storage media.
SCSI is most commonly used for hard disks and tape drives, but it can also be used to connect a wide range of other devices, including scanners and DC drives.
hard disk drives
Storage devices are different mediums that can hold varying amounts of information. Some examples of storage devices include CD, DVD, flash drives, floppy disks, and tape drives.
Examples of storage devices are: internal/external hard drives, floppy drives, CD's, DVD's, thumb drives, etc.
Solid state drives, or SSD, are storage devices that uses integrated circuit assemblies as memory. Flash drives, compact flash, and MultiMedia cards are examples of solid state storage devices.
There are many different kinds of storage devices based on the purpose of the device. These devices include flash drives.
Flash drives, back up storage units
storage, non-volatile storage, persistent storage, mass storage, non-volatile memory. There are lots of ways to say it. I would say "storage media" myself.
San's or Storage Area Networks are the devices used when making optical drives, or storage drives, such as usb flash drives. You can purchase these from companies like New Egg.