Computer organization mcqs secondary storage

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Computer organization mcqs secondary storage

Question 1 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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
Question 1 Explanation: 
In the case of semi conductor based memory technology, we get speed but the increase in the integration of various devices the cost is high.
Question 2 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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
Question 2 Explanation: 
The digital data is sorted on the magnetized discs by magnetizing the areas.
Question 3 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
For the synchronization of the read head, we make use of a .....
A
Framing bit
B
Synchronization bit
C
Clock
D
Dirty bit
Question 3 Explanation: 
The clock makes it easy to distinguish between different values red by a head.
Question 4 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
One of the most widely used schemes of encoding used is .....
A
NRZ-polar
B
RZ-polar
C
Manchester
D
Block encoding
Question 4 Explanation: 
The Manchester encoding used is also called as phase encoding and it is used to encode both clock and data.
Question 5 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The drawback of Manchester encoding is .....
A
The cost of the encoding scheme
B
The speed of encoding the data
C
The Latency offered
D
The low bit storage density provided
Question 5 Explanation: 
The space required to represent each bit must be large enough to accommodate two changes in magnetization.
There are 5 questions to complete.

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