Digital Computer Electronics problems
- 1. How many bytes are there in 1011 1001 0110 1110 numbers?
Options- A. 1
- B. 2
- C. 4
- D. 8
- E. None of the above Discuss
Correct Answer: 2
- 2. Which of the following boolean algebra statements represent commutative law
Options- A. (A+B)+CA+(B+C)
- B. A.(B+C)(A.B)+(A.C)
- C. A+BB+A
- D. A+AA
- E. None of the above Discuss
Correct Answer: A+BB+A
- 3. A NOR gate recognizes only the input word whose bits are _____
Options- A. 0's and 1's
- B. 1's
- C. 0's
- D. 0's or 1's
- E. None of the above Discuss
Correct Answer: 0's
- 4. A microcomputer is a computer that uses a _____ for its CPU.
Options- A. chips
- B. registers
- C. microprocessor
- D. vacuum tube
- E. None of the above Discuss
Correct Answer: microprocessor
- 5. Which of the following logic expression is wrong?
Options- A. 1 + 0=1
- B. 1 + 1=0
- C. 1+0+1 = 1
- D. 1 + 1 + 1 = 1
- E. None of the above Discuss
Correct Answer: 1+0+1 = 1
- 6. Subtraction of 1001011002 from 11101010102 is
Options- A. 10010111102
- B. 01101000012
- C. 11110000012
- D. 11110111112
- E. None of the above Discuss
Correct Answer: 10010111102
- 7. Parallel adders are
Options- A. combinational logic circuits
- B. sequential logic circuits
- C. both of the above
- D. All of the above
- E. None of the above Discuss
Correct Answer: combinational logic circuits
- 8. Consider as RS flip-flops with both inputs set to 0. If a momentary '1' is applied at the input S, then the output
Options- A. Q will flip from 0 to 1
- B. Q will flip from 0 to 1 and then back to 0
- C. Q will flip from 0 to 1
- D. Q will flip from 0 to 1 and then back to 0
- E. None of the above Discuss
Correct Answer: Q will flip from 0 to 1
- 9. The 2's compliment of binary number 0.01011 is:
Options- A. 1.10101
- B. 0.10101
- C. 1.10100
- D. 0.10100
- E. None of the above Discuss
Correct Answer: 1.10101
- 10. Conversion of hexadecimal number 93FA16 to it's binary number equivalent is
Options- A. 10010011111110102
- B. 100100111111101112
- C. 1100111111100112
- D. 1111100001112
- E. None of the above Discuss
Correct Answer: 10010011111110102
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