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Question

Which of the following is a storage device that uses rigid, permanently installed magnetic disks to store data/information?

A
Floppy diskette
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B
Hard disk
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C
Permanent disk
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D
Optical disk
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E
None of these
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Solution

The correct option is A Hard disk

Hard disk is a storage device that uses rigid, permanently installed magnetic disks to store data/information.

A hard disk drive (HDD), hard disk, hard drive, or fixed disk, is an electromechanical data storage device that uses magnetic storage to store and retrieve digital information using one or more rigid rapidly rotating disks (platters) coated with magnetic material. The platters are paired with magnetic heads, usually arranged on a moving actuator arm, which read and write data to the platter surfaces. Data is accessed in a random-access manner, meaning that individual blocks of data can be stored or retrieved in any order and not only sequentially. HDDs are a type of non-volatile storage, retaining stored data even when powered off.


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