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  • Question
  • 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

  • Correct Answer
  • 1+0+1 = 1 


  • Digital Computer Electronics problems


    Search Results


    • 1. 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
    • 2. 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
    • 3. 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
    • 4. 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
    • 5. The functional capacity for LSI devices is

    • Options
    • A. 1 to 11 gates
    • B. 12 to 99 gates
    • C. 100 to 10,000 gates
    • D. more than 10,000 gates
    • E. None of the above
    • Discuss
    • 6. Subtraction of 1001011002 from 11101010102 is

    • Options
    • A. 10010111102
    • B. 01101000012
    • C. 11110000012
    • D. 11110111112
    • E. None of the above
    • Discuss
    • 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
    • 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
    • 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
    • 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


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