Electronics and Communication Engineering - Digital Electronics

26. 

Race condition occurs in

A. synchronous circuit
B. asynchronous circuit
C. combinational circuit
D. all the Digital circuit

Answer: Option B

Explanation:

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27. 

What does the B register contain after the first MOV B, A has been executed?

A. 40 H
B. 60 H
C. 80 H
D. 80 D

Answer: Option B

Explanation:

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28. 

Among the logic families, the family which can be used at very high frequency greater than 100 MHz in a 4 bit synchronous counter is

A. TTL
B. CMOS
C. ECL
D. TTLLS

Answer: Option C

Explanation:

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29. 

Which of the following is a self-complementing code?

A. 8421 code
B. Excess 3 codes
C. Pure binary code
D. Gray code

Answer: Option D

Explanation:

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30. 

ALU processes

A. decimal numbers
B. binary numbers
C. hexadecimal numbers
D. all of the above

Answer: Option B

Explanation:

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