Electronics and Communication Engineering - Digital Electronics

6. 

Which one of the following is loaded in the main memory by the bootstrap loader?

A. System data
B. User program
C. BIOS
D. Part of DOS

Answer: Option D

Explanation:

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7. 

In a NAND SR latch S = 0, R = 1 then

A. Q = 0
B. Q = 1, Q = 0
C. it is race condition
D. none of the above

Answer: Option B

Explanation:

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8. 

Microprocessors find applications in

A. pocket calculators
B. scientific instruments
C. medical equipments
D. all of the above

Answer: Option D

Explanation:

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9. 

The characteristic equation of flip-flop gives the next state QN + 1 in terms of present state QN and the inputs. Which one of the following is the characteristic equation of J - K flip-flop?

A. QN+1 = JQN + KQN
B. QN+1 = J + KQN
C. QN+1 = KQN + JQN
D. QN+1 = K + JQN

Answer: Option A

Explanation:

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10. 

If we need a device to shut off a few ampere current in a few nano seconds, the proper devices is

A. VMOS
B. CMOS
C. BJT
D. UJT

Answer: Option A

Explanation:

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