How to Fill the binary in the Truth Table

Discussion in 'Homework Help' started by wesam82, Mar 10, 2013.

  1. wesam82

    Thread Starter New Member

    Mar 10, 2013
    3
    0
    Hi
    If I have a decimal for example 671 which is in binary 0110 0111 0001
    How to fill the binary in the Truth Table as output

    A B C - ***Output***
    0 0 0
    0 0 0
    0 0 1
    0 0 1
    0 1 0
    0 1 0
    0 1 1
    0 1 1
    1 0 0
    1 0 0
    1 0 1
    1 0 1
    1 1 0
    1 1 0
    1 1 1
    1 1 1
     
  2. WBahn

    Moderator

    Mar 31, 2012
    17,777
    4,804
    Your question in nonsensical. What relationship is there between the (wrong) binary pattern for a particular decimal number and the truth table for a function with three inputs?

    And why have you repeated each input combination twice?
     
  3. wesam82

    Thread Starter New Member

    Mar 10, 2013
    3
    0
    Sorry, You are right. The question is : a. Draw a truth table for the logic of the system and derive an un-simplified Boolean expression in Sum-of-products form.
     
  4. MrChips

    Moderator

    Oct 2, 2009
    12,449
    3,365
    Come again. Your question makes no sense.
     
  5. WBahn

    Moderator

    Mar 31, 2012
    17,777
    4,804
    The logic of WHAT system?
     
  6. StayatHomeElectronics

    Well-Known Member

    Sep 25, 2008
    864
    40
    You have yet to state what the system is. You have just given an example that seems totally unrelated with the truth table you want filled in.
     
  7. wesam82

    Thread Starter New Member

    Mar 10, 2013
    3
    0
    It is an alarm system in which if the bit is 1 then the alarm will be activated
     
  8. WBahn

    Moderator

    Mar 31, 2012
    17,777
    4,804
    Now you throw out yet another piece of information that has no apparent relationship to the others.

    Either provide a clear statement of what you are trying to do, or I will simply conclude that you are a troll on a fishing expedition and move on to posters that actually want to learn something.
     
  9. StayatHomeElectronics

    Well-Known Member

    Sep 25, 2008
    864
    40
    Must be
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    1
    1
    as the output then.
     
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