Which storage device is described as an electro-mechanical device that uses magnetic storage on rapidly rotating platters?

Which storage device is described as an electro-mechanical device that uses magnetic storage on rapidly rotating platters?

• A. Solid State Drive (SSD)
• B. Magnetic Tape
• C. Hard Disk Drive (HDD)
• D. RAM Disk

Answer: (C)

This item asks you to recognize a storage device that combines moving parts with magnetic storage on spinning platters. A hard disk drive achieves this by using platters that spin at high speeds and read/write heads that move over the surface to magnetize or sense tiny regions, storing data magnetically. This electro-mechanical action—motors turning the disks and actuators positioning the heads—defines HDDs. By contrast, solid-state drives have no moving parts and use flash memory, magnetic tape relies on sequential access on a recording tape, and RAM disks use volatile memory to mimic a disk without any magnetic spinning media. The spinning magnetic platters and read/write heads are the key traits that identify this device.

This item asks you to recognize a storage device that combines moving parts with magnetic storage on spinning platters. A hard disk drive achieves this by using platters that spin at high speeds and read/write heads that move over the surface to magnetize or sense tiny regions, storing data magnetically. This electro-mechanical action—motors turning the disks and actuators positioning the heads—defines HDDs. By contrast, solid-state drives have no moving parts and use flash memory, magnetic tape relies on sequential access on a recording tape, and RAM disks use volatile memory to mimic a disk without any magnetic spinning media. The spinning magnetic platters and read/write heads are the key traits that identify this device.