Computer Organization Architecture - Cache and main memory

11:   The access time of magnetic bubble memory is approximately
A. 30 nano seconds
B. 30 micro seconds
C. 30 pico seconds
D. 0.3 seconds
 
 

Option: B

Explanation :


12:   The use of hardware in Memory management is through segment relocation and protection is
A. To perform address translation to reduce size of the memory
B. To perform address translation to reduce execution time overhead
C. Both (a) and (b)
D. None of the above
 
 

Option: C

Explanation :


13:   Memory refreshing may be done
A. By the CPU that contains a special refresh counter, only
B. By an external refresh controller, only
C. Either by the CPU or by an external refresh controller
D. None of these
 
 

Option: B

Explanation :


14:   Memory consisting of electronic circuits attached into silicon chip is known as
A. Magnetic core memory
B. Semiconductor memory
C. Thin film memory
D. None of these
 
 

Option: B

Explanation :


15:   A dynamic RAM consists of
A. 6 transistors
B. 2 transistors and 2 capacitors
C. 1 transistor and 1 capacitor
D. None of these
 
 

Option: C

Explanation :



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