Hard Disk


 
 
Concept Explanation
 

Hard Disk Drive (HDD)  :  It is a non - volatile and random access digital data storage device. HDD is a data storage device used for storing and retrieving digital information using rotating disks (platters) coated with magnetic material. All programs of a computer are installed in hard. It is a fixed disk i.e. cannot be removed the drive.

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Sample Questions
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Question : 1

Which of the following is a Synonym of hard disk?

Right Option : D
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Question : 2

Which of the following does not requires continuous  power supply to retain it into the memory ?

a) RAM         b) ROM         c) Hard disk     d)  Pen drive

Right Option : B
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Question : 3

Who made the first hard drive ?

Right Option : C
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