It’s hard drives all the way down

Which part of a hard drive is responsible for moving the arm back and forth?

A) Spindle

B) Platter

C) Actuator

D) Head

E) The arm is actually stationary and the entire world moves back and forth around it

The answer: C) Actuator

The actuator contains very strong magnets that can accurately move the hard drive arm to the correct location on the platters.

Want to know more? Watch “Storage Devices.”

Storage technology has changed dramatically through the years, from floppy disks through solid state drives. In this video, you’ll learn about the technology behind floppy drives, hard drives, solid state technologies, and optical drives. You’ll also learn about removable storage technologies, tape drives, and external storage options.