Hard Disk Drive Technology Quiz

What is the approximate thickness of the functional layer of a hard disk drive's platter?

• 300 nanometers

• 400 nanometers

• 200 nanometers

• 100 nanometers

What is the speed at which the spindle of a hard disk drive typically spins?

• 10800 rpm

• 9000 rpm

• 7200 rpm

• 5400 rpm

What is the material used in the read head of a hard disk drive that changes its resistivity depending on the strength of magnetic fields?

• Ferromagnetic material

• Non-magnetic material

• Conductive material

• Giant magnetoresistance material

Which technology utilizes a small, focused laser to heat the region that is actively being written to in a hard disk drive?

• Magnetic Domain Recording

• Classic Magnetic Recording

• Shingled Magnetic Recording

• Heat Assisted Magnetic Recording

What is the approximate number of tracks that the latest hard drives can have on just one side?

• 100,000 tracks

• 250,000 tracks

• 500,000 tracks

• 1,000,000 tracks

What is the primary function of the actuator in a hard disk drive?

• To read and write data

• To spin the disk platter

• To move the read/write head across the disk

• To control the speed of the disk

What is the typical data transfer rate of a modern hard disk drive?

• 50-120 MB/s

• 120-200 MB/s

• 200-500 MB/s

• 500-1000 MB/s

Which technology is used to increase the storage density of a hard disk drive?

• Perpendicular Magnetic Recording

• Longitudinal Magnetic Recording

• Optical Recording

• Thermal Recording