Question

Hard-disk is an only storage device true or false​

Answer 1

Answer:

false.There are many other devices

Answer 2

A hard disk drive (HDD), hard disk, hard drive, or fixed disk[b] 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.

so the answer is true

because it is an storage device