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  1. #1
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    VIVA questions for digital electronics lab

    Can any one post the viva questions and answers for digital electronics lab.
    The experiments are
    1.half adder and full using NAND
    2.binary to gray code converter
    3.gray to binary code converter
    4.BCD to Excees3 code converter
    5.binary adder/subtractor and BCD adder using IC 7483
    6.Magnitude comparator
    7.parity checker and generator
    8.Mux and d-mux
    9.octal to binary encoder and 2x4 decoder
    10.2 bit synchronous up/down counter
    11.shift registers
    12.Ripple counter

    Thanks

    •   Alt17th October 2010, 16:09

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  2. #2
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    Re: VIVA questions for digital electronics lab

    Quote Originally Posted by atchutharam View Post
    Can any one post the viva questions and answers for digital electronics lab.
    The experiments are
    1.half adder and full using NAND
    2.binary to gray code converter
    3.gray to binary code converter
    4.BCD to Excees3 code converter
    5.binary adder/subtractor and BCD adder using IC 7483
    6.Magnitude comparator
    7.parity checker and generator
    8.Mux and d-mux
    9.octal to binary encoder and 2x4 decoder
    10.2 bit synchronous up/down counter
    11.shift registers
    12.Ripple counter

    Thanks
    hi,

    here are some questions:
    1.which are types of modeling styles.
    2. Which style is used for design of Full adder using half adder?
    3. difference between behaviora and data flow modeling.
    4. Bolean expressions for all combinational logics such as half adder, full adder,bin to gray and gray to bin,bcd 2 excess-3 etc.
    5. Sequential statements
    6. What is port declaration?
    7. What is black box?
    8. writtting pgm for mux, decoder etc.using basic logic gates or components
    9 What is component instantiation?
    10 define simulation and synthesis.
    11. which simulator u use?
    12. how to declare clock
    13. differnce betn latch and flip flop
    14 What is RTL?
    15. Types of counters, block diagrams, programming.

    GOOD LUCK


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    •   Alt20th October 2010, 16:07

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  3. #3
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    Re: VIVA questions for digital electronics lab

    Thanks buddy



    •   Alt20th October 2010, 19:18

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  4. #4
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    Re: VIVA questions for digital electronics lab

    Quote Originally Posted by atchutharam View Post
    Thanks buddy
    what are the ans? coz my exam is also near



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    Re: VIVA questions for digital electronics lab

    Sorry ziad i doesnt have the answers ,
    i will post as soon as possibile,
    if u got you also post that.,.,.ok?



  6. #6
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    Re: VIVA questions for digital electronics lab

    1.Behavioral modeling,structural modeling and data flow modeling

    2.structural modeling

    3.Dataflow is one way of describing the program.Like describing the logical funtion of a particular design.
    Behavioral model on the other hand describes the behavior of the system.How does it behave when particular input is given

    5.wait,assertion,if,exit,next... are some of the sequential statements.

    10 simulation is a process of creating a virtual design for the code we wrote. and synthesis is a process of verifying the correctness in the virtual design.

    11.Xilinx ISE

    13.latch just stores a bit a data and it doesnt need clock but flip flop stores one bit of data but it needs the clock

    14.Resistor transistor logic and in vhdl rtl stands for register transfer level.



  7. #7
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    Re: VIVA questions for digital electronics lab

    Quote Originally Posted by ziad khan View Post
    what are the ans? coz my exam is also near
    All the answers can be found in ur course book . I think u must do some home work.

    all the best



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