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CSE :: Digital Computer Electronics

  1. A binary adder is a logic circuit that can add _____ binary numbers at a time.

  2. A.
    Hundreds
    B.
    Thousands
    C.
    One
    D.
    Two
    E.
    None of the above

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  3. A half-adder adds _____ bits

  4. A.
    16
    B.
    8
    C.
    10
    D.
    2
    E.
    None of the above

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  5. The 2764 is 65,536-bit EPROM organized as 8,192 words of 8 bits each. How many address lines does it have?

  6. A.
    12
    B.
    14
    C.
    13
    D.
    8
    E.
    None of the above

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  7. What does 4k represent?

  8. A.
    4000
    B.
    4096
    C.
    40
    D.
    400
    E.
    None of the above

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  9. Conversion of decimal number 4210 to it's octal number equivalent is

  10. A.
    578
    B.
    428
    C.
    478
    D.
    528
    E.
    None of the above

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  11. The _____ is ultraviolet-light-erasable and electrically programmable. This allows the user to erase and store until programs and data are perfected.

  12. A.
    EPROM
    B.
    ROM
    C.
    PROM
    D.
    RAM
    E.
    None of the above

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  13. The logic 1 in positive logic system is represented by:

  14. A.
    zero voltage
    B.
    lower voltage level
    C.
    higher voltage level
    D.
    negative voltage
    E.
    None of the above

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  15. Conversion of decimal number 9910 to it's binary number equivalent is

  16. A.
    11000112
    B.
    1000112
    C.
    11100012
    D.
    111 10002
    E.
    None of the above

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  17. The number of two-input NAND gates required to produce the two-input OR function is

  18. A.
    1
    B.
    2
    C.
    3
    D.
    4
    E.
    None of the above

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  19. A 2's-complement adder-subtracter can add or subtract binary numbers. Sign-magnitude numbers represent _____ decimal numbers, and 2's complements stand for _____ decimal numbers.

  20. A.
    hexa, sign
    B.
    sign, hexa
    C.
    positive, negative
    D.
    negative, positive
    E.
    None of the above

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