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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

  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

  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

  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

  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

  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

  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

  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

  17. Subtraction of 1001011002 from 11101010102 is

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

  19. Addition of 1101012 and 1011112 is

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