Question

2. What is a hard disk? How will we name several logical drives​

Answer 1

Answer:

A hard disk drive, hard disk, hard drive, or fixed disk is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage and one or more rigid rapidly rotating platters coated with magnetic material

Answer 2

Answer:

An operating system may define volumes or logical disks and assign each to one physical disk, more than one physical disk or part of the storage area of a physical disk. For example, Windows NT can create several partitions on a hard disk drive, each of which a separate volume with its own file system.

From Wikipedia

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