Which storage device has rapidly rotating disks with magnetic surfaces and can be internal or portable?

Which storage device has rapidly rotating disks with magnetic surfaces and can be internal or portable?

• A. Hard Drive
• B. RAM
• C. ROM
• D. CPU

Answer: (A)

The concept here is storage using spinning magnetic platters. A hard drive stores data on rapidly rotating disks coated with magnetic material, while read/write heads move across the surfaces to access or modify data. This setup can be inside the computer or in a portable external enclosure, so it can be internal or portable. In contrast, RAM is fast volatile memory on chips, ROM is fixed non-volatile memory on chips, and the CPU is the processor, not storage. So the described device is the hard drive.

The concept here is storage using spinning magnetic platters. A hard drive stores data on rapidly rotating disks coated with magnetic material, while read/write heads move across the surfaces to access or modify data. This setup can be inside the computer or in a portable external enclosure, so it can be internal or portable. In contrast, RAM is fast volatile memory on chips, ROM is fixed non-volatile memory on chips, and the CPU is the processor, not storage. So the described device is the hard drive.