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MCQ

Q.

The digital information is stored on the hard disk by ____________

A

Applying a suitable electric pulse

B

Applying a suitable magnetic field

C

Applying a suitable nuclear field

D

By using optic waves

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MCQ

1.

For the synchronization of the read head, we make use of a _______

A

Framing bit

B

Synchronization bit

C

Clock

D

Dirty bit

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2.

One of the most widely used schemes of encoding used is _________

A

NRZ-polar

B

RZ-polar

C

Manchester

D

Block encoding

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3.

A hard disk with 20 surfaces will have _____ heads.

A

10

B

5

C

1

D

20

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4.

The method of accessing the I/O devices by repeatedly checking the status flags is ___________

A

Program-controlled I/O

B

Memory-mapped I/O

C

I/O mapped

D

None of the mentioned

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5.

The main reason for the discontinuation of semi conductor based storage devices for providing large storage space is _________

A

Lack of sufficient resources

B

High cost per bit value

C

Lack of speed of operation

D

None of the mentioned

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