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CSE :: Digital Computer Electronics

Digital Computer Electronics - Section 1
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Digital Computer Electronics - Section 4
Digital Computer Electronics - Section 5

  1. Conversion of binary number 1000112 to an octal number is

    2. A.
    438
    B.
    478
    C.
    498
    D.
    508
    E.
    None of the above

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  2. What table shows the electrical state of a digital circuit's output for every possible combination of electrical states in the inputs?

    3. A.
    Function table
    B.
    Truth table
    C.
    Routing table
    D.
    ASCII table
    E.
    None of the above

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  3. What is the hexadecimal equivalent of a binary number 10101111

    4. A.
    AF
    B.
    9E
    C.
    8C
    D.
    All of the above
    E.
    None of the above

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  4. The two basic technologies for digital ICs are bipolar and MOS. Bipolar technology is preferred for_____ and _____ whereas MOS technology is better suited to LSI.

    5. A.
    SSI, MSI
    B.
    MSI, LSI
    C.
    SSI, LSI
    D.
    ECL, DTL
    E.
    None of the above

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  5. Small-scale integration, abbreviated _____ refers to fewer than 12 gates on the same chip. Medium-scale integration (MSI) means 12 to 100 gates per chip. And large-scale integration (LSI) refers to more than _____ gates per chip.

    6. A.
    SSI, 75
    B.
    SSI, 100
    C.
    SSI, 1000
    D.
    SSI, 10000
    E.
    None of the above

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  6. How many outputs signals can a gate have?

    7. A.
    one
    B.
    more than one
    C.
    two only
    D.
    both (a) and (b)
    E.
    None of the above

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  7. Conversion of an octal number 1258 to its decimal number is

    8. A.
    9010
    B.
    8510
    C.
    8710
    D.
    9910
    E.
    None of the above

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  8. What is the main advantage of using MOSFET rather than bipolar transistor circuitary in ICs?

    9. A.
    much greater complexity (more components) than bipolar circuits : better economy
    B.
    higher operating speed than bipolar circuits
    C.
    fewer power supply connections are required with MOS ICs
    D.
    system designers are more familiar with MOS circuitary

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  9. The term sum-of-products in boolean algebra means

    10. A.
    The AND function of several OR functions
    B.
    The OR function of several AND functions
    C.
    The OR function of several OR functions
    D.
    The AND function of several AND functions
    E.
    None of the above

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  10. A shift register can be used for:

    11. A.
    parallel to serial conversion
    B.
    serial to parallel conversion
    C.
    digital delay line
    D.
    all of the above
    E.
    None of the above

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