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CSE :: Digital Computer Electronics

  1. The _____ gate has two or more input signals. All inputs must be high to get a high output

  2. A.
    OR
    B.
    NAND
    C.
    AND
    D.
    NOR
    E.
    None of the above

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  3. Conversion of an octal number 1428 to binary number is

  4. A.
    11000102
    B.
    1101102
    C.
    11000112
    D.
    11011012
    E.
    None of the above

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  5. Conversion of hexadecimal number 93FA16 to it's binary number equivalent is

  6. A.
    10010011111110102
    B.
    100100111111101112
    C.
    1100111111100112
    D.
    1111100001112
    E.
    None of the above

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  7. BCD numbers are useful whenever _____ information is transferred into or out of a digital system.

  8. A.
    decimal
    B.
    binary
    C.
    ASCII
    D.
    hexadecimal
    E.
    None of the above

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  9. A NOR gate recognizes only the input word whose bits are _____

  10. A.
    0's and 1's
    B.
    1's
    C.
    0's
    D.
    0's or 1's
    E.
    None of the above

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  11. How many bytes are there in 1011 1001 0110 1110 numbers?

  12. A.
    1
    B.
    2
    C.
    4
    D.
    8
    E.
    None of the above

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  13. Consider as RS flip-flops with both inputs set to 0. If a momentary '1' is applied at the input S, then the output

  14. 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

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  15. Which of the following logic expression is wrong?

  16. A.
    1 + 0=1
    B.
    1 + 1=0
    C.
    1+0+1 = 1
    D.
    1 + 1 + 1 = 1
    E.
    None of the above

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  17. Subtraction of 1001011002 from 11101010102 is

  18. A.
    10010111102
    B.
    01101000012
    C.
    11110000012
    D.
    11110111112
    E.
    None of the above

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  19. Addition of 1101012 and 1011112 is

  20. A.
    11001002
    B.
    11010002
    C.
    11101112
    D.
    1100112
    E.
    None of the above

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