truth table boolean logic

Discussion in 'Homework Help' started by fran1942, Nov 3, 2010.

  1. fran1942

    Thread Starter Member

    Jul 26, 2010
    58
    0
    Hello, I think out tutor gave us a faulty example, so I modified it as I thought correct.
    Can anyone confirm if this truth table is a correct representation of the logic diagram ?

    Thanks in advance.
     
  2. haykp

    New Member

    Oct 7, 2010
    18
    0
    I am afraid but I don't agree with representation of logic diagram.
    the right one is Out = A`+B`
     
  3. zgozvrm

    Member

    Oct 24, 2009
    115
    2
    I haven't seen logic diagrams with symbols like this.

    I assume the 2-input blocks with the \ge are OR gates (outputs TRUE if either, or both inputs are TRUE).

    Also, I'm guessing that the 1-input gate with the "1" inside and the inverted output is a NOT gate.

    Obviously the gate with the "&" represents an AND gate.

    If I am correct in the above assumptions, your logic equation is correct:
    \left( \overline{A + B} \right) + \overline{B}C

    ...but your truth table is incorrect.
     
  4. JoeJester

    AAC Fanatic!

    Apr 26, 2005
    3,373
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  5. Georacer

    Moderator

    Nov 25, 2009
    5,142
    1,266
    No, the truth table is wrong.

    Be more careful when filling the truth table. Do you know how to do the process of filling the table?
     
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